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Finding the Fourth Proportional to 57,869.46, 79,861.32 and 32,374.98

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Solution

The fourth proportional to 57,869.46, 79,861.32 and 32,374.98 is: 44,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.46 : 79,861.32 = 32,374.98 : x
  2. Step 2: Convert to fraction form
    57,869.46/79,861.32 = 32,374.98/x
  3. Step 3: Cross multiply
    57,869.46x = 79,861.32 × 32,374.98
  4. Step 4: Simplify right side
    57,869.46x = 2,585,508,637.77
  5. Step 5: Solve for x
    x = 2,585,508,637.77/57,869.46
  6. Step 6: Final answer
    x = 44,678.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.