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Finding the Fourth Proportional to 18,549.98, 27,792.36 and 15,449.84

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Solution

The fourth proportional to 18,549.98, 27,792.36 and 15,449.84 is: 23,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.98 : 27,792.36 = 15,449.84 : x
  2. Step 2: Convert to fraction form
    18,549.98/27,792.36 = 15,449.84/x
  3. Step 3: Cross multiply
    18,549.98x = 27,792.36 × 15,449.84
  4. Step 4: Simplify right side
    18,549.98x = 429,387,515.22
  5. Step 5: Solve for x
    x = 429,387,515.22/18,549.98
  6. Step 6: Final answer
    x = 23,147.60

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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.