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Finding the Fourth Proportional to 6,615.48, 9,927.20 and 2,454.80

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Solution

The fourth proportional to 6,615.48, 9,927.20 and 2,454.80 is: 3,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.48 : 9,927.20 = 2,454.80 : x
  2. Step 2: Convert to fraction form
    6,615.48/9,927.20 = 2,454.80/x
  3. Step 3: Cross multiply
    6,615.48x = 9,927.20 × 2,454.80
  4. Step 4: Simplify right side
    6,615.48x = 24,369,290.56
  5. Step 5: Solve for x
    x = 24,369,290.56/6,615.48
  6. Step 6: Final answer
    x = 3,683.68

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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.