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Finding the Fourth Proportional to 19,874.52, 29,806.56 and 10,501.92

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Solution

The fourth proportional to 19,874.52, 29,806.56 and 10,501.92 is: 15,750.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.52 : 29,806.56 = 10,501.92 : x
  2. Step 2: Convert to fraction form
    19,874.52/29,806.56 = 10,501.92/x
  3. Step 3: Cross multiply
    19,874.52x = 29,806.56 × 10,501.92
  4. Step 4: Simplify right side
    19,874.52x = 313,026,108.60
  5. Step 5: Solve for x
    x = 313,026,108.60/19,874.52
  6. Step 6: Final answer
    x = 15,750.12

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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.