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Finding the Fourth Proportional to 18,752.67, 25,871.67 and 11,200.23

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Solution

The fourth proportional to 18,752.67, 25,871.67 and 11,200.23 is: 15,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.67 : 25,871.67 = 11,200.23 : x
  2. Step 2: Convert to fraction form
    18,752.67/25,871.67 = 11,200.23/x
  3. Step 3: Cross multiply
    18,752.67x = 25,871.67 × 11,200.23
  4. Step 4: Simplify right side
    18,752.67x = 289,768,654.48
  5. Step 5: Solve for x
    x = 289,768,654.48/18,752.67
  6. Step 6: Final answer
    x = 15,452.13

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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.