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Finding the Fourth Proportional to 1,125.67, 1,552.49 and 794.18

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Solution

The fourth proportional to 1,125.67, 1,552.49 and 794.18 is: 1,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.67 : 1,552.49 = 794.18 : x
  2. Step 2: Convert to fraction form
    1,125.67/1,552.49 = 794.18/x
  3. Step 3: Cross multiply
    1,125.67x = 1,552.49 × 794.18
  4. Step 4: Simplify right side
    1,125.67x = 1,232,956.51
  5. Step 5: Solve for x
    x = 1,232,956.51/1,125.67
  6. Step 6: Final answer
    x = 1,095.31

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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.