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Finding the Fourth Proportional to 7,329.47, 10,988.02 and 4,982.90

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Solution

The fourth proportional to 7,329.47, 10,988.02 and 4,982.90 is: 7,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.47 : 10,988.02 = 4,982.90 : x
  2. Step 2: Convert to fraction form
    7,329.47/10,988.02 = 4,982.90/x
  3. Step 3: Cross multiply
    7,329.47x = 10,988.02 × 4,982.90
  4. Step 4: Simplify right side
    7,329.47x = 54,752,156.15
  5. Step 5: Solve for x
    x = 54,752,156.15/7,329.47
  6. Step 6: Final answer
    x = 7,470.14

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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.