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Finding the Fourth Proportional to 5,789.89, 8,672.68 and 4,551.40

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Solution

The fourth proportional to 5,789.89, 8,672.68 and 4,551.40 is: 6,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.89 : 8,672.68 = 4,551.40 : x
  2. Step 2: Convert to fraction form
    5,789.89/8,672.68 = 4,551.40/x
  3. Step 3: Cross multiply
    5,789.89x = 8,672.68 × 4,551.40
  4. Step 4: Simplify right side
    5,789.89x = 39,472,819.76
  5. Step 5: Solve for x
    x = 39,472,819.76/5,789.89
  6. Step 6: Final answer
    x = 6,817.55

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1.5x scale

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.