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Finding the Fourth Proportional to 10,658.88, 15,974.36 and 5,722.74

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Solution

The fourth proportional to 10,658.88, 15,974.36 and 5,722.74 is: 8,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658.88 : 15,974.36 = 5,722.74 : x
  2. Step 2: Convert to fraction form
    10,658.88/15,974.36 = 5,722.74/x
  3. Step 3: Cross multiply
    10,658.88x = 15,974.36 × 5,722.74
  4. Step 4: Simplify right side
    10,658.88x = 91,417,108.95
  5. Step 5: Solve for x
    x = 91,417,108.95/10,658.88
  6. Step 6: Final answer
    x = 8,576.61

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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.