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Finding the Fourth Proportional to 48,859.70, 73,289.84 and 13,799.66

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Solution

The fourth proportional to 48,859.70, 73,289.84 and 13,799.66 is: 20,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,859.70 : 73,289.84 = 13,799.66 : x
  2. Step 2: Convert to fraction form
    48,859.70/73,289.84 = 13,799.66/x
  3. Step 3: Cross multiply
    48,859.70x = 73,289.84 × 13,799.66
  4. Step 4: Simplify right side
    48,859.70x = 1,011,374,438.01
  5. Step 5: Solve for x
    x = 1,011,374,438.01/48,859.70
  6. Step 6: Final answer
    x = 20,699.57

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Similar ratio
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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.