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Finding the Fourth Proportional to 8,951.88, 13,430.25 and 2,711.64

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Solution

The fourth proportional to 8,951.88, 13,430.25 and 2,711.64 is: 4,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.88 : 13,430.25 = 2,711.64 : x
  2. Step 2: Convert to fraction form
    8,951.88/13,430.25 = 2,711.64/x
  3. Step 3: Cross multiply
    8,951.88x = 13,430.25 × 2,711.64
  4. Step 4: Simplify right side
    8,951.88x = 36,418,003.11
  5. Step 5: Solve for x
    x = 36,418,003.11/8,951.88
  6. Step 6: Final answer
    x = 4,068.20

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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.