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Finding the Fourth Proportional to 7,499.13, 10,350.06 and 7,166.97

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Solution

The fourth proportional to 7,499.13, 10,350.06 and 7,166.97 is: 9,891.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.13 : 10,350.06 = 7,166.97 : x
  2. Step 2: Convert to fraction form
    7,499.13/10,350.06 = 7,166.97/x
  3. Step 3: Cross multiply
    7,499.13x = 10,350.06 × 7,166.97
  4. Step 4: Simplify right side
    7,499.13x = 74,178,569.52
  5. Step 5: Solve for x
    x = 74,178,569.52/7,499.13
  6. Step 6: Final answer
    x = 9,891.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.