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Finding the Fourth Proportional to 13,751.53, 18,985.71 and 9,452.04

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Solution

The fourth proportional to 13,751.53, 18,985.71 and 9,452.04 is: 13,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.53 : 18,985.71 = 9,452.04 : x
  2. Step 2: Convert to fraction form
    13,751.53/18,985.71 = 9,452.04/x
  3. Step 3: Cross multiply
    13,751.53x = 18,985.71 × 9,452.04
  4. Step 4: Simplify right side
    13,751.53x = 179,453,690.35
  5. Step 5: Solve for x
    x = 179,453,690.35/13,751.53
  6. Step 6: Final answer
    x = 13,049.73

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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.