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Finding the Fourth Proportional to 61,057.56, 84,272.22 and 39,800.28

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Solution

The fourth proportional to 61,057.56, 84,272.22 and 39,800.28 is: 54,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,057.56 : 84,272.22 = 39,800.28 : x
  2. Step 2: Convert to fraction form
    61,057.56/84,272.22 = 39,800.28/x
  3. Step 3: Cross multiply
    61,057.56x = 84,272.22 × 39,800.28
  4. Step 4: Simplify right side
    61,057.56x = 3,354,057,952.22
  5. Step 5: Solve for x
    x = 3,354,057,952.22/61,057.56
  6. Step 6: Final answer
    x = 54,932.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.