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Finding the Fourth Proportional to 8,271.60, 12,404.80 and 4,373.88

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Solution

The fourth proportional to 8,271.60, 12,404.80 and 4,373.88 is: 6,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.60 : 12,404.80 = 4,373.88 : x
  2. Step 2: Convert to fraction form
    8,271.60/12,404.80 = 4,373.88/x
  3. Step 3: Cross multiply
    8,271.60x = 12,404.80 × 4,373.88
  4. Step 4: Simplify right side
    8,271.60x = 54,257,106.62
  5. Step 5: Solve for x
    x = 54,257,106.62/8,271.60
  6. Step 6: Final answer
    x = 6,559.45

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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.