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Finding the Fourth Proportional to 72,006.32, 108,009.53 and 24,621.77

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Solution

The fourth proportional to 72,006.32, 108,009.53 and 24,621.77 is: 36,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.32 : 108,009.53 = 24,621.77 : x
  2. Step 2: Convert to fraction form
    72,006.32/108,009.53 = 24,621.77/x
  3. Step 3: Cross multiply
    72,006.32x = 108,009.53 × 24,621.77
  4. Step 4: Simplify right side
    72,006.32x = 2,659,385,326.97
  5. Step 5: Solve for x
    x = 2,659,385,326.97/72,006.32
  6. Step 6: Final answer
    x = 36,932.66

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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.