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Finding the Fourth Proportional to 5,658.88, 8,480.56 and 4,271.04

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Solution

The fourth proportional to 5,658.88, 8,480.56 and 4,271.04 is: 6,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.88 : 8,480.56 = 4,271.04 : x
  2. Step 2: Convert to fraction form
    5,658.88/8,480.56 = 4,271.04/x
  3. Step 3: Cross multiply
    5,658.88x = 8,480.56 × 4,271.04
  4. Step 4: Simplify right side
    5,658.88x = 36,220,810.98
  5. Step 5: Solve for x
    x = 36,220,810.98/5,658.88
  6. Step 6: Final answer
    x = 6,400.70

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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.