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Finding the Fourth Proportional to 18,437.67, 27,684.11 and 10,549.08

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Solution

The fourth proportional to 18,437.67, 27,684.11 and 10,549.08 is: 15,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.67 : 27,684.11 = 10,549.08 : x
  2. Step 2: Convert to fraction form
    18,437.67/27,684.11 = 10,549.08/x
  3. Step 3: Cross multiply
    18,437.67x = 27,684.11 × 10,549.08
  4. Step 4: Simplify right side
    18,437.67x = 292,041,986.70
  5. Step 5: Solve for x
    x = 292,041,986.70/18,437.67
  6. Step 6: Final answer
    x = 15,839.42

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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.