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Finding the Fourth Proportional to 48,672.15, 72,980.88 and 15,400.59

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Solution

The fourth proportional to 48,672.15, 72,980.88 and 15,400.59 is: 23,092.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,672.15 : 72,980.88 = 15,400.59 : x
  2. Step 2: Convert to fraction form
    48,672.15/72,980.88 = 15,400.59/x
  3. Step 3: Cross multiply
    48,672.15x = 72,980.88 × 15,400.59
  4. Step 4: Simplify right side
    48,672.15x = 1,123,948,610.72
  5. Step 5: Solve for x
    x = 1,123,948,610.72/48,672.15
  6. Step 6: Final answer
    x = 23,092.23

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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.