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Finding the Fourth Proportional to 60,493.32, 90,740.12 and 18,373.72

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Solution

The fourth proportional to 60,493.32, 90,740.12 and 18,373.72 is: 27,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,493.32 : 90,740.12 = 18,373.72 : x
  2. Step 2: Convert to fraction form
    60,493.32/90,740.12 = 18,373.72/x
  3. Step 3: Cross multiply
    60,493.32x = 90,740.12 × 18,373.72
  4. Step 4: Simplify right side
    60,493.32x = 1,667,233,557.65
  5. Step 5: Solve for x
    x = 1,667,233,557.65/60,493.32
  6. Step 6: Final answer
    x = 27,560.62

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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.