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Finding the Fourth Proportional to 18,741.27, 28,101.28 and 6,254.52

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Solution

The fourth proportional to 18,741.27, 28,101.28 and 6,254.52 is: 9,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.27 : 28,101.28 = 6,254.52 : x
  2. Step 2: Convert to fraction form
    18,741.27/28,101.28 = 6,254.52/x
  3. Step 3: Cross multiply
    18,741.27x = 28,101.28 × 6,254.52
  4. Step 4: Simplify right side
    18,741.27x = 175,760,017.79
  5. Step 5: Solve for x
    x = 175,760,017.79/18,741.27
  6. Step 6: Final answer
    x = 9,378.23

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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.