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Finding the Fourth Proportional to 59,691.68, 82,386.21 and 34,215.12

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Solution

The fourth proportional to 59,691.68, 82,386.21 and 34,215.12 is: 47,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,691.68 : 82,386.21 = 34,215.12 : x
  2. Step 2: Convert to fraction form
    59,691.68/82,386.21 = 34,215.12/x
  3. Step 3: Cross multiply
    59,691.68x = 82,386.21 × 34,215.12
  4. Step 4: Simplify right side
    59,691.68x = 2,818,854,189.80
  5. Step 5: Solve for x
    x = 2,818,854,189.80/59,691.68
  6. Step 6: Final answer
    x = 47,223.57

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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.