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Finding the Fourth Proportional to 16,967.55, 25,447.97 and 5,721.78

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Solution

The fourth proportional to 16,967.55, 25,447.97 and 5,721.78 is: 8,581.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,967.55 : 25,447.97 = 5,721.78 : x
  2. Step 2: Convert to fraction form
    16,967.55/25,447.97 = 5,721.78/x
  3. Step 3: Cross multiply
    16,967.55x = 25,447.97 × 5,721.78
  4. Step 4: Simplify right side
    16,967.55x = 145,607,685.79
  5. Step 5: Solve for x
    x = 145,607,685.79/16,967.55
  6. Step 6: Final answer
    x = 8,581.54

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1.5x scale

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.