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Finding the Fourth Proportional to 71,336.61, 98,436.54 and 39,497.52

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Solution

The fourth proportional to 71,336.61, 98,436.54 and 39,497.52 is: 54,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,336.61 : 98,436.54 = 39,497.52 : x
  2. Step 2: Convert to fraction form
    71,336.61/98,436.54 = 39,497.52/x
  3. Step 3: Cross multiply
    71,336.61x = 98,436.54 × 39,497.52
  4. Step 4: Simplify right side
    71,336.61x = 3,887,999,207.38
  5. Step 5: Solve for x
    x = 3,887,999,207.38/71,336.61
  6. Step 6: Final answer
    x = 54,502.16

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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.