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Finding the Fourth Proportional to 59,425.40, 89,138.10 and 47,761.40

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Solution

The fourth proportional to 59,425.40, 89,138.10 and 47,761.40 is: 71,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,425.40 : 89,138.10 = 47,761.40 : x
  2. Step 2: Convert to fraction form
    59,425.40/89,138.10 = 47,761.40/x
  3. Step 3: Cross multiply
    59,425.40x = 89,138.10 × 47,761.40
  4. Step 4: Simplify right side
    59,425.40x = 4,257,360,449.34
  5. Step 5: Solve for x
    x = 4,257,360,449.34/59,425.40
  6. Step 6: Final answer
    x = 71,642.10

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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.