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Finding the Fourth Proportional to 26,487.93, 39,747.44 and 9,859.55

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Solution

The fourth proportional to 26,487.93, 39,747.44 and 9,859.55 is: 14,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,487.93 : 39,747.44 = 9,859.55 : x
  2. Step 2: Convert to fraction form
    26,487.93/39,747.44 = 9,859.55/x
  3. Step 3: Cross multiply
    26,487.93x = 39,747.44 × 9,859.55
  4. Step 4: Simplify right side
    26,487.93x = 391,891,697.96
  5. Step 5: Solve for x
    x = 391,891,697.96/26,487.93
  6. Step 6: Final answer
    x = 14,795.10

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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.