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Finding the Fourth Proportional to 53,889,636.80, 80,834,455.20 and 26,608,998.80

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Solution

The fourth proportional to 53,889,636.80, 80,834,455.20 and 26,608,998.80 is: 39,913,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,889,636.80 : 80,834,455.20 = 26,608,998.80 : x
  2. Step 2: Convert to fraction form
    53,889,636.80/80,834,455.20 = 26,608,998.80/x
  3. Step 3: Cross multiply
    53,889,636.80x = 80,834,455.20 × 26,608,998.80
  4. Step 4: Simplify right side
    53,889,636.80x = 2,150,923,921,415,454
  5. Step 5: Solve for x
    x = 2,150,923,921,415,454/53,889,636.80
  6. Step 6: Final answer
    x = 39,913,498.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.