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Finding the Fourth Proportional to 56,600.40, 84,889.62 and 53,790.60

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Solution

The fourth proportional to 56,600.40, 84,889.62 and 53,790.60 is: 80,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,600.40 : 84,889.62 = 53,790.60 : x
  2. Step 2: Convert to fraction form
    56,600.40/84,889.62 = 53,790.60/x
  3. Step 3: Cross multiply
    56,600.40x = 84,889.62 × 53,790.60
  4. Step 4: Simplify right side
    56,600.40x = 4,566,263,593.57
  5. Step 5: Solve for x
    x = 4,566,263,593.57/56,600.40
  6. Step 6: Final answer
    x = 80,675.47

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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.