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Finding the Fourth Proportional to 1,484.52, 2,049.65 and 925.84

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Solution

The fourth proportional to 1,484.52, 2,049.65 and 925.84 is: 1,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.52 : 2,049.65 = 925.84 : x
  2. Step 2: Convert to fraction form
    1,484.52/2,049.65 = 925.84/x
  3. Step 3: Cross multiply
    1,484.52x = 2,049.65 × 925.84
  4. Step 4: Simplify right side
    1,484.52x = 1,897,647.96
  5. Step 5: Solve for x
    x = 1,897,647.96/1,484.52
  6. Step 6: Final answer
    x = 1,278.29

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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.