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Finding the Fourth Proportional to 28,248.52, 42,372.63 and 6,900.97

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Solution

The fourth proportional to 28,248.52, 42,372.63 and 6,900.97 is: 10,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.52 : 42,372.63 = 6,900.97 : x
  2. Step 2: Convert to fraction form
    28,248.52/42,372.63 = 6,900.97/x
  3. Step 3: Cross multiply
    28,248.52x = 42,372.63 × 6,900.97
  4. Step 4: Simplify right side
    28,248.52x = 292,412,248.45
  5. Step 5: Solve for x
    x = 292,412,248.45/28,248.52
  6. Step 6: Final answer
    x = 10,351.42

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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.