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Finding the Fourth Proportional to 7,950.16, 10,982.28 and 7,561.36

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Solution

The fourth proportional to 7,950.16, 10,982.28 and 7,561.36 is: 10,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.16 : 10,982.28 = 7,561.36 : x
  2. Step 2: Convert to fraction form
    7,950.16/10,982.28 = 7,561.36/x
  3. Step 3: Cross multiply
    7,950.16x = 10,982.28 × 7,561.36
  4. Step 4: Simplify right side
    7,950.16x = 83,040,972.70
  5. Step 5: Solve for x
    x = 83,040,972.70/7,950.16
  6. Step 6: Final answer
    x = 10,445.20

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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.