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Finding the Fourth Proportional to 7,076.88, 9,764.44 and 4,092.17

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Solution

The fourth proportional to 7,076.88, 9,764.44 and 4,092.17 is: 5,646.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.88 : 9,764.44 = 4,092.17 : x
  2. Step 2: Convert to fraction form
    7,076.88/9,764.44 = 4,092.17/x
  3. Step 3: Cross multiply
    7,076.88x = 9,764.44 × 4,092.17
  4. Step 4: Simplify right side
    7,076.88x = 39,957,689.38
  5. Step 5: Solve for x
    x = 39,957,689.38/7,076.88
  6. Step 6: Final answer
    x = 5,646.23

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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.