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Finding the Fourth Proportional to 1,595.66, 2,391.92 and 671.48

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Solution

The fourth proportional to 1,595.66, 2,391.92 and 671.48 is: 1,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.66 : 2,391.92 = 671.48 : x
  2. Step 2: Convert to fraction form
    1,595.66/2,391.92 = 671.48/x
  3. Step 3: Cross multiply
    1,595.66x = 2,391.92 × 671.48
  4. Step 4: Simplify right side
    1,595.66x = 1,606,126.44
  5. Step 5: Solve for x
    x = 1,606,126.44/1,595.66
  6. Step 6: Final answer
    x = 1,006.56

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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.