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Finding the Fourth Proportional to 28,024.43, 42,036.53 and 8,304.53

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Solution

The fourth proportional to 28,024.43, 42,036.53 and 8,304.53 is: 12,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,024.43 : 42,036.53 = 8,304.53 : x
  2. Step 2: Convert to fraction form
    28,024.43/42,036.53 = 8,304.53/x
  3. Step 3: Cross multiply
    28,024.43x = 42,036.53 × 8,304.53
  4. Step 4: Simplify right side
    28,024.43x = 349,093,372.78
  5. Step 5: Solve for x
    x = 349,093,372.78/28,024.43
  6. Step 6: Final answer
    x = 12,456.75

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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.