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Finding the Fourth Proportional to 18,114.87, 24,987.02 and 13,086.48

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Solution

The fourth proportional to 18,114.87, 24,987.02 and 13,086.48 is: 18,051.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.87 : 24,987.02 = 13,086.48 : x
  2. Step 2: Convert to fraction form
    18,114.87/24,987.02 = 13,086.48/x
  3. Step 3: Cross multiply
    18,114.87x = 24,987.02 × 13,086.48
  4. Step 4: Simplify right side
    18,114.87x = 326,992,072.06
  5. Step 5: Solve for x
    x = 326,992,072.06/18,114.87
  6. Step 6: Final answer
    x = 18,051.03

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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.