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Finding the Fourth Proportional to 58,761.40, 88,132.92 and 19,318.24

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Solution

The fourth proportional to 58,761.40, 88,132.92 and 19,318.24 is: 28,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,761.40 : 88,132.92 = 19,318.24 : x
  2. Step 2: Convert to fraction form
    58,761.40/88,132.92 = 19,318.24/x
  3. Step 3: Cross multiply
    58,761.40x = 88,132.92 × 19,318.24
  4. Step 4: Simplify right side
    58,761.40x = 1,702,572,900.46
  5. Step 5: Solve for x
    x = 1,702,572,900.46/58,761.40
  6. Step 6: Final answer
    x = 28,974.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.