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Finding the Fourth Proportional to 53,848.60, 80,696.10 and 39,698.20

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Solution

The fourth proportional to 53,848.60, 80,696.10 and 39,698.20 is: 59,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,848.60 : 80,696.10 = 39,698.20 : x
  2. Step 2: Convert to fraction form
    53,848.60/80,696.10 = 39,698.20/x
  3. Step 3: Cross multiply
    53,848.60x = 80,696.10 × 39,698.20
  4. Step 4: Simplify right side
    53,848.60x = 3,203,489,917.02
  5. Step 5: Solve for x
    x = 3,203,489,917.02/53,848.60
  6. Step 6: Final answer
    x = 59,490.68

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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.