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Finding the Fourth Proportional to 19,353.87, 29,031.08 and 5,502.87

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Solution

The fourth proportional to 19,353.87, 29,031.08 and 5,502.87 is: 8,254.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,353.87 : 29,031.08 = 5,502.87 : x
  2. Step 2: Convert to fraction form
    19,353.87/29,031.08 = 5,502.87/x
  3. Step 3: Cross multiply
    19,353.87x = 29,031.08 × 5,502.87
  4. Step 4: Simplify right side
    19,353.87x = 159,754,231.69
  5. Step 5: Solve for x
    x = 159,754,231.69/19,353.87
  6. Step 6: Final answer
    x = 8,254.38

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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.