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Finding the Fourth Proportional to 61,618.64, 85,033.64 and 34,761.12

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Solution

The fourth proportional to 61,618.64, 85,033.64 and 34,761.12 is: 47,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,618.64 : 85,033.64 = 34,761.12 : x
  2. Step 2: Convert to fraction form
    61,618.64/85,033.64 = 34,761.12/x
  3. Step 3: Cross multiply
    61,618.64x = 85,033.64 × 34,761.12
  4. Step 4: Simplify right side
    61,618.64x = 2,955,864,564.08
  5. Step 5: Solve for x
    x = 2,955,864,564.08/61,618.64
  6. Step 6: Final answer
    x = 47,970.30

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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.