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Finding the Fourth Proportional to 4,915.52, 7,374 and 1,452.32

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Solution

The fourth proportional to 4,915.52, 7,374 and 1,452.32 is: 2,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.52 : 7,374 = 1,452.32 : x
  2. Step 2: Convert to fraction form
    4,915.52/7,374 = 1,452.32/x
  3. Step 3: Cross multiply
    4,915.52x = 7,374 × 1,452.32
  4. Step 4: Simplify right side
    4,915.52x = 10,709,407.68
  5. Step 5: Solve for x
    x = 10,709,407.68/4,915.52
  6. Step 6: Final answer
    x = 2,178.69

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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.