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Finding the Fourth Proportional to 18,034.23, 24,871.06 and 15,019.31

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Solution

The fourth proportional to 18,034.23, 24,871.06 and 15,019.31 is: 20,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,034.23 : 24,871.06 = 15,019.31 : x
  2. Step 2: Convert to fraction form
    18,034.23/24,871.06 = 15,019.31/x
  3. Step 3: Cross multiply
    18,034.23x = 24,871.06 × 15,019.31
  4. Step 4: Simplify right side
    18,034.23x = 373,546,160.17
  5. Step 5: Solve for x
    x = 373,546,160.17/18,034.23
  6. Step 6: Final answer
    x = 20,713.17

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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.