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Finding the Fourth Proportional to 8,672.88, 13,011.47 and 2,516.88

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Solution

The fourth proportional to 8,672.88, 13,011.47 and 2,516.88 is: 3,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.88 : 13,011.47 = 2,516.88 : x
  2. Step 2: Convert to fraction form
    8,672.88/13,011.47 = 2,516.88/x
  3. Step 3: Cross multiply
    8,672.88x = 13,011.47 × 2,516.88
  4. Step 4: Simplify right side
    8,672.88x = 32,748,308.61
  5. Step 5: Solve for x
    x = 32,748,308.61/8,672.88
  6. Step 6: Final answer
    x = 3,775.94

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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.