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Finding the Fourth Proportional to 43,959.42, 65,947.23 and 14,378.90

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Solution

The fourth proportional to 43,959.42, 65,947.23 and 14,378.90 is: 21,570.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,959.42 : 65,947.23 = 14,378.90 : x
  2. Step 2: Convert to fraction form
    43,959.42/65,947.23 = 14,378.90/x
  3. Step 3: Cross multiply
    43,959.42x = 65,947.23 × 14,378.90
  4. Step 4: Simplify right side
    43,959.42x = 948,248,295.71
  5. Step 5: Solve for x
    x = 948,248,295.71/43,959.42
  6. Step 6: Final answer
    x = 21,570.99

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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.