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Finding the Fourth Proportional to 6,613.54, 9,903.90 and 5,522.74

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Solution

The fourth proportional to 6,613.54, 9,903.90 and 5,522.74 is: 8,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.54 : 9,903.90 = 5,522.74 : x
  2. Step 2: Convert to fraction form
    6,613.54/9,903.90 = 5,522.74/x
  3. Step 3: Cross multiply
    6,613.54x = 9,903.90 × 5,522.74
  4. Step 4: Simplify right side
    6,613.54x = 54,696,615.17
  5. Step 5: Solve for x
    x = 54,696,615.17/6,613.54
  6. Step 6: Final answer
    x = 8,270.41

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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.