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Finding the Fourth Proportional to 8,588.72, 12,883.20 and 2,432.72

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Solution

The fourth proportional to 8,588.72, 12,883.20 and 2,432.72 is: 3,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.72 : 12,883.20 = 2,432.72 : x
  2. Step 2: Convert to fraction form
    8,588.72/12,883.20 = 2,432.72/x
  3. Step 3: Cross multiply
    8,588.72x = 12,883.20 × 2,432.72
  4. Step 4: Simplify right side
    8,588.72x = 31,341,218.30
  5. Step 5: Solve for x
    x = 31,341,218.30/8,588.72
  6. Step 6: Final answer
    x = 3,649.11

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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.