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Finding the Fourth Proportional to 29,719.47, 44,586.93 and 8,659.02

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Solution

The fourth proportional to 29,719.47, 44,586.93 and 8,659.02 is: 12,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,719.47 : 44,586.93 = 8,659.02 : x
  2. Step 2: Convert to fraction form
    29,719.47/44,586.93 = 8,659.02/x
  3. Step 3: Cross multiply
    29,719.47x = 44,586.93 × 8,659.02
  4. Step 4: Simplify right side
    29,719.47x = 386,079,118.61
  5. Step 5: Solve for x
    x = 386,079,118.61/29,719.47
  6. Step 6: Final answer
    x = 12,990.78

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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.