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Finding the Fourth Proportional to 7,209.68, 9,951.96 and 4,558.88

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Solution

The fourth proportional to 7,209.68, 9,951.96 and 4,558.88 is: 6,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.68 : 9,951.96 = 4,558.88 : x
  2. Step 2: Convert to fraction form
    7,209.68/9,951.96 = 4,558.88/x
  3. Step 3: Cross multiply
    7,209.68x = 9,951.96 × 4,558.88
  4. Step 4: Simplify right side
    7,209.68x = 45,369,791.40
  5. Step 5: Solve for x
    x = 45,369,791.40/7,209.68
  6. Step 6: Final answer
    x = 6,292.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.