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Finding the Fourth Proportional to 7,658.03, 10,568.78 and 4,472.87

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Solution

The fourth proportional to 7,658.03, 10,568.78 and 4,472.87 is: 6,172.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.03 : 10,568.78 = 4,472.87 : x
  2. Step 2: Convert to fraction form
    7,658.03/10,568.78 = 4,472.87/x
  3. Step 3: Cross multiply
    7,658.03x = 10,568.78 × 4,472.87
  4. Step 4: Simplify right side
    7,658.03x = 47,272,703.79
  5. Step 5: Solve for x
    x = 47,272,703.79/7,658.03
  6. Step 6: Final answer
    x = 6,172.96

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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.