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Finding the Fourth Proportional to 26,446.50, 39,655.98 and 8,910

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Solution

The fourth proportional to 26,446.50, 39,655.98 and 8,910 is: 13,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,446.50 : 39,655.98 = 8,910 : x
  2. Step 2: Convert to fraction form
    26,446.50/39,655.98 = 8,910/x
  3. Step 3: Cross multiply
    26,446.50x = 39,655.98 × 8,910
  4. Step 4: Simplify right side
    26,446.50x = 353,334,781.80
  5. Step 5: Solve for x
    x = 353,334,781.80/26,446.50
  6. Step 6: Final answer
    x = 13,360.36

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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.