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Finding the Fourth Proportional to 9,873.90, 14,810.54 and 3,947.85

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Solution

The fourth proportional to 9,873.90, 14,810.54 and 3,947.85 is: 5,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,873.90 : 14,810.54 = 3,947.85 : x
  2. Step 2: Convert to fraction form
    9,873.90/14,810.54 = 3,947.85/x
  3. Step 3: Cross multiply
    9,873.90x = 14,810.54 × 3,947.85
  4. Step 4: Simplify right side
    9,873.90x = 58,469,770.60
  5. Step 5: Solve for x
    x = 58,469,770.60/9,873.90
  6. Step 6: Final answer
    x = 5,921.65

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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.