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Finding the Fourth Proportional to 7,761.52, 11,642.28 and 6,604.84

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Solution

The fourth proportional to 7,761.52, 11,642.28 and 6,604.84 is: 9,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,761.52 : 11,642.28 = 6,604.84 : x
  2. Step 2: Convert to fraction form
    7,761.52/11,642.28 = 6,604.84/x
  3. Step 3: Cross multiply
    7,761.52x = 11,642.28 × 6,604.84
  4. Step 4: Simplify right side
    7,761.52x = 76,895,396.64
  5. Step 5: Solve for x
    x = 76,895,396.64/7,761.52
  6. Step 6: Final answer
    x = 9,907.26

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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.