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Finding the Fourth Proportional to 48,008.52, 72,049.53 and 21,731.72

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Solution

The fourth proportional to 48,008.52, 72,049.53 and 21,731.72 is: 32,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,008.52 : 72,049.53 = 21,731.72 : x
  2. Step 2: Convert to fraction form
    48,008.52/72,049.53 = 21,731.72/x
  3. Step 3: Cross multiply
    48,008.52x = 72,049.53 × 21,731.72
  4. Step 4: Simplify right side
    48,008.52x = 1,565,759,933.34
  5. Step 5: Solve for x
    x = 1,565,759,933.34/48,008.52
  6. Step 6: Final answer
    x = 32,614.21

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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.