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Finding the Fourth Proportional to 48,575.61, 72,863.01 and 13,515.16

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Solution

The fourth proportional to 48,575.61, 72,863.01 and 13,515.16 is: 20,272.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,575.61 : 72,863.01 = 13,515.16 : x
  2. Step 2: Convert to fraction form
    48,575.61/72,863.01 = 13,515.16/x
  3. Step 3: Cross multiply
    48,575.61x = 72,863.01 × 13,515.16
  4. Step 4: Simplify right side
    48,575.61x = 984,755,238.23
  5. Step 5: Solve for x
    x = 984,755,238.23/48,575.61
  6. Step 6: Final answer
    x = 20,272.63

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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.