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Finding the Fourth Proportional to 5,488.97, 7,569.99 and 3,892.46

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Solution

The fourth proportional to 5,488.97, 7,569.99 and 3,892.46 is: 5,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.97 : 7,569.99 = 3,892.46 : x
  2. Step 2: Convert to fraction form
    5,488.97/7,569.99 = 3,892.46/x
  3. Step 3: Cross multiply
    5,488.97x = 7,569.99 × 3,892.46
  4. Step 4: Simplify right side
    5,488.97x = 29,465,845.43
  5. Step 5: Solve for x
    x = 29,465,845.43/5,488.97
  6. Step 6: Final answer
    x = 5,368.20

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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.