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Finding the Fourth Proportional to 15,641.87, 23,462.80 and 3,955.08

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Solution

The fourth proportional to 15,641.87, 23,462.80 and 3,955.08 is: 5,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.87 : 23,462.80 = 3,955.08 : x
  2. Step 2: Convert to fraction form
    15,641.87/23,462.80 = 3,955.08/x
  3. Step 3: Cross multiply
    15,641.87x = 23,462.80 × 3,955.08
  4. Step 4: Simplify right side
    15,641.87x = 92,797,241.14
  5. Step 5: Solve for x
    x = 92,797,241.14/15,641.87
  6. Step 6: Final answer
    x = 5,932.62

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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.