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Finding the Fourth Proportional to 71,047.29, 98,046.08 and 39,216.22

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Solution

The fourth proportional to 71,047.29, 98,046.08 and 39,216.22 is: 54,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,047.29 : 98,046.08 = 39,216.22 : x
  2. Step 2: Convert to fraction form
    71,047.29/98,046.08 = 39,216.22/x
  3. Step 3: Cross multiply
    71,047.29x = 98,046.08 × 39,216.22
  4. Step 4: Simplify right side
    71,047.29x = 3,844,996,349.28
  5. Step 5: Solve for x
    x = 3,844,996,349.28/71,047.29
  6. Step 6: Final answer
    x = 54,118.83

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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.