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Finding the Fourth Proportional to 31,560.87, 47,254.95 and 30,724.32

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Solution

The fourth proportional to 31,560.87, 47,254.95 and 30,724.32 is: 46,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.87 : 47,254.95 = 30,724.32 : x
  2. Step 2: Convert to fraction form
    31,560.87/47,254.95 = 30,724.32/x
  3. Step 3: Cross multiply
    31,560.87x = 47,254.95 × 30,724.32
  4. Step 4: Simplify right side
    31,560.87x = 1,451,876,205.38
  5. Step 5: Solve for x
    x = 1,451,876,205.38/31,560.87
  6. Step 6: Final answer
    x = 46,002.41

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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.