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Finding the Fourth Proportional to 1,124.65, 1,551.18 and 792.73

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Solution

The fourth proportional to 1,124.65, 1,551.18 and 792.73 is: 1,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.65 : 1,551.18 = 792.73 : x
  2. Step 2: Convert to fraction form
    1,124.65/1,551.18 = 792.73/x
  3. Step 3: Cross multiply
    1,124.65x = 1,551.18 × 792.73
  4. Step 4: Simplify right side
    1,124.65x = 1,229,666.92
  5. Step 5: Solve for x
    x = 1,229,666.92/1,124.65
  6. Step 6: Final answer
    x = 1,093.38

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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.