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Finding the Fourth Proportional to 2,349.47, 3,523.65 and 789.53

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Solution

The fourth proportional to 2,349.47, 3,523.65 and 789.53 is: 1,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.47 : 3,523.65 = 789.53 : x
  2. Step 2: Convert to fraction form
    2,349.47/3,523.65 = 789.53/x
  3. Step 3: Cross multiply
    2,349.47x = 3,523.65 × 789.53
  4. Step 4: Simplify right side
    2,349.47x = 2,782,027.38
  5. Step 5: Solve for x
    x = 2,782,027.38/2,349.47
  6. Step 6: Final answer
    x = 1,184.11

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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.