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Finding the Fourth Proportional to 25,648.56, 38,463.59 and 9,845.46

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Solution

The fourth proportional to 25,648.56, 38,463.59 and 9,845.46 is: 14,764.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.56 : 38,463.59 = 9,845.46 : x
  2. Step 2: Convert to fraction form
    25,648.56/38,463.59 = 9,845.46/x
  3. Step 3: Cross multiply
    25,648.56x = 38,463.59 × 9,845.46
  4. Step 4: Simplify right side
    25,648.56x = 378,691,687.57
  5. Step 5: Solve for x
    x = 378,691,687.57/25,648.56
  6. Step 6: Final answer
    x = 14,764.64

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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.