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Finding the Fourth Proportional to 7,691.34, 11,524.86 and 5,601.72

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Solution

The fourth proportional to 7,691.34, 11,524.86 and 5,601.72 is: 8,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.34 : 11,524.86 = 5,601.72 : x
  2. Step 2: Convert to fraction form
    7,691.34/11,524.86 = 5,601.72/x
  3. Step 3: Cross multiply
    7,691.34x = 11,524.86 × 5,601.72
  4. Step 4: Simplify right side
    7,691.34x = 64,559,038.76
  5. Step 5: Solve for x
    x = 64,559,038.76/7,691.34
  6. Step 6: Final answer
    x = 8,393.73

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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.