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Finding the Fourth Proportional to 22,657.79, 33,986.72 and 8,614.52

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Solution

The fourth proportional to 22,657.79, 33,986.72 and 8,614.52 is: 12,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,657.79 : 33,986.72 = 8,614.52 : x
  2. Step 2: Convert to fraction form
    22,657.79/33,986.72 = 8,614.52/x
  3. Step 3: Cross multiply
    22,657.79x = 33,986.72 × 8,614.52
  4. Step 4: Simplify right side
    22,657.79x = 292,779,279.17
  5. Step 5: Solve for x
    x = 292,779,279.17/22,657.79
  6. Step 6: Final answer
    x = 12,921.79

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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.