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Finding the Fourth Proportional to 25,644.70, 38,471.02 and 10,853.70

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Solution

The fourth proportional to 25,644.70, 38,471.02 and 10,853.70 is: 16,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,644.70 : 38,471.02 = 10,853.70 : x
  2. Step 2: Convert to fraction form
    25,644.70/38,471.02 = 10,853.70/x
  3. Step 3: Cross multiply
    25,644.70x = 38,471.02 × 10,853.70
  4. Step 4: Simplify right side
    25,644.70x = 417,552,909.77
  5. Step 5: Solve for x
    x = 417,552,909.77/25,644.70
  6. Step 6: Final answer
    x = 16,282.23

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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.