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Finding the Fourth Proportional to 71,466.93, 98,620.95 and 39,635.13

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Solution

The fourth proportional to 71,466.93, 98,620.95 and 39,635.13 is: 54,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,466.93 : 98,620.95 = 39,635.13 : x
  2. Step 2: Convert to fraction form
    71,466.93/98,620.95 = 39,635.13/x
  3. Step 3: Cross multiply
    71,466.93x = 98,620.95 × 39,635.13
  4. Step 4: Simplify right side
    71,466.93x = 3,908,854,173.97
  5. Step 5: Solve for x
    x = 3,908,854,173.97/71,466.93
  6. Step 6: Final answer
    x = 54,694.59

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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.