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Finding the Fourth Proportional to 43,407.20, 65,110.80 and 26,713.10

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Solution

The fourth proportional to 43,407.20, 65,110.80 and 26,713.10 is: 40,069.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,407.20 : 65,110.80 = 26,713.10 : x
  2. Step 2: Convert to fraction form
    43,407.20/65,110.80 = 26,713.10/x
  3. Step 3: Cross multiply
    43,407.20x = 65,110.80 × 26,713.10
  4. Step 4: Simplify right side
    43,407.20x = 1,739,311,311.48
  5. Step 5: Solve for x
    x = 1,739,311,311.48/43,407.20
  6. Step 6: Final answer
    x = 40,069.65

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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.