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Finding the Fourth Proportional to 58,472.85, 87,708.50 and 14,099.25

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Solution

The fourth proportional to 58,472.85, 87,708.50 and 14,099.25 is: 21,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.85 : 87,708.50 = 14,099.25 : x
  2. Step 2: Convert to fraction form
    58,472.85/87,708.50 = 14,099.25/x
  3. Step 3: Cross multiply
    58,472.85x = 87,708.50 × 14,099.25
  4. Step 4: Simplify right side
    58,472.85x = 1,236,623,998.13
  5. Step 5: Solve for x
    x = 1,236,623,998.13/58,472.85
  6. Step 6: Final answer
    x = 21,148.69

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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.