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Finding the Fourth Proportional to 4,337.70, 6,505.89 and 1,416

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Solution

The fourth proportional to 4,337.70, 6,505.89 and 1,416 is: 2,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,337.70 : 6,505.89 = 1,416 : x
  2. Step 2: Convert to fraction form
    4,337.70/6,505.89 = 1,416/x
  3. Step 3: Cross multiply
    4,337.70x = 6,505.89 × 1,416
  4. Step 4: Simplify right side
    4,337.70x = 9,212,340.24
  5. Step 5: Solve for x
    x = 9,212,340.24/4,337.70
  6. Step 6: Final answer
    x = 2,123.78

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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.