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Finding the Fourth Proportional to 60,251.52, 90,380.16 and 18,693.12

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Solution

The fourth proportional to 60,251.52, 90,380.16 and 18,693.12 is: 28,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,251.52 : 90,380.16 = 18,693.12 : x
  2. Step 2: Convert to fraction form
    60,251.52/90,380.16 = 18,693.12/x
  3. Step 3: Cross multiply
    60,251.52x = 90,380.16 × 18,693.12
  4. Step 4: Simplify right side
    60,251.52x = 1,689,487,176.50
  5. Step 5: Solve for x
    x = 1,689,487,176.50/60,251.52
  6. Step 6: Final answer
    x = 28,040.57

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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.