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Finding the Fourth Proportional to 8,532.07, 12,799.32 and 2,988.66

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Solution

The fourth proportional to 8,532.07, 12,799.32 and 2,988.66 is: 4,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.07 : 12,799.32 = 2,988.66 : x
  2. Step 2: Convert to fraction form
    8,532.07/12,799.32 = 2,988.66/x
  3. Step 3: Cross multiply
    8,532.07x = 12,799.32 × 2,988.66
  4. Step 4: Simplify right side
    8,532.07x = 38,252,815.71
  5. Step 5: Solve for x
    x = 38,252,815.71/8,532.07
  6. Step 6: Final answer
    x = 4,483.42

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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.