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Finding the Fourth Proportional to 44,728.86, 67,101.80 and 15,138.75

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Solution

The fourth proportional to 44,728.86, 67,101.80 and 15,138.75 is: 22,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,728.86 : 67,101.80 = 15,138.75 : x
  2. Step 2: Convert to fraction form
    44,728.86/67,101.80 = 15,138.75/x
  3. Step 3: Cross multiply
    44,728.86x = 67,101.80 × 15,138.75
  4. Step 4: Simplify right side
    44,728.86x = 1,015,837,374.75
  5. Step 5: Solve for x
    x = 1,015,837,374.75/44,728.86
  6. Step 6: Final answer
    x = 22,711.01

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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.