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Finding the Fourth Proportional to 13,452.66, 18,562.68 and 7,484.40

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Solution

The fourth proportional to 13,452.66, 18,562.68 and 7,484.40 is: 10,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.66 : 18,562.68 = 7,484.40 : x
  2. Step 2: Convert to fraction form
    13,452.66/18,562.68 = 7,484.40/x
  3. Step 3: Cross multiply
    13,452.66x = 18,562.68 × 7,484.40
  4. Step 4: Simplify right side
    13,452.66x = 138,930,522.19
  5. Step 5: Solve for x
    x = 138,930,522.19/13,452.66
  6. Step 6: Final answer
    x = 10,327.36

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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.