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Finding the Fourth Proportional to 2,337.19, 3,505.78 and 951.28

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Solution

The fourth proportional to 2,337.19, 3,505.78 and 951.28 is: 1,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.19 : 3,505.78 = 951.28 : x
  2. Step 2: Convert to fraction form
    2,337.19/3,505.78 = 951.28/x
  3. Step 3: Cross multiply
    2,337.19x = 3,505.78 × 951.28
  4. Step 4: Simplify right side
    2,337.19x = 3,334,970.82
  5. Step 5: Solve for x
    x = 3,334,970.82/2,337.19
  6. Step 6: Final answer
    x = 1,426.92

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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.