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Finding the Fourth Proportional to 26,363.52, 39,545.28 and 6,642

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Solution

The fourth proportional to 26,363.52, 39,545.28 and 6,642 is: 9,963

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,363.52 : 39,545.28 = 6,642 : x
  2. Step 2: Convert to fraction form
    26,363.52/39,545.28 = 6,642/x
  3. Step 3: Cross multiply
    26,363.52x = 39,545.28 × 6,642
  4. Step 4: Simplify right side
    26,363.52x = 262,659,749.76
  5. Step 5: Solve for x
    x = 262,659,749.76/26,363.52
  6. Step 6: Final answer
    x = 9,963

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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.