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Finding the Fourth Proportional to 2,915.35, 4,373.13 and 967.57

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Solution

The fourth proportional to 2,915.35, 4,373.13 and 967.57 is: 1,451.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.35 : 4,373.13 = 967.57 : x
  2. Step 2: Convert to fraction form
    2,915.35/4,373.13 = 967.57/x
  3. Step 3: Cross multiply
    2,915.35x = 4,373.13 × 967.57
  4. Step 4: Simplify right side
    2,915.35x = 4,231,309.39
  5. Step 5: Solve for x
    x = 4,231,309.39/2,915.35
  6. Step 6: Final answer
    x = 1,451.39

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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.