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Finding the Fourth Proportional to 71,071, 98,081.14 and 40,866.12

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Solution

The fourth proportional to 71,071, 98,081.14 and 40,866.12 is: 56,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071 : 98,081.14 = 40,866.12 : x
  2. Step 2: Convert to fraction form
    71,071/98,081.14 = 40,866.12/x
  3. Step 3: Cross multiply
    71,071x = 98,081.14 × 40,866.12
  4. Step 4: Simplify right side
    71,071x = 4,008,195,636.98
  5. Step 5: Solve for x
    x = 4,008,195,636.98/71,071
  6. Step 6: Final answer
    x = 56,397.06

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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.