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Finding the Fourth Proportional to 1,097.92, 1,648.32 and 750.16

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Solution

The fourth proportional to 1,097.92, 1,648.32 and 750.16 is: 1,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.92 : 1,648.32 = 750.16 : x
  2. Step 2: Convert to fraction form
    1,097.92/1,648.32 = 750.16/x
  3. Step 3: Cross multiply
    1,097.92x = 1,648.32 × 750.16
  4. Step 4: Simplify right side
    1,097.92x = 1,236,503.73
  5. Step 5: Solve for x
    x = 1,236,503.73/1,097.92
  6. Step 6: Final answer
    x = 1,126.22

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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.