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Finding the Fourth Proportional to 26,752.80, 40,129.20 and 26,234.40

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Solution

The fourth proportional to 26,752.80, 40,129.20 and 26,234.40 is: 39,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,752.80 : 40,129.20 = 26,234.40 : x
  2. Step 2: Convert to fraction form
    26,752.80/40,129.20 = 26,234.40/x
  3. Step 3: Cross multiply
    26,752.80x = 40,129.20 × 26,234.40
  4. Step 4: Simplify right side
    26,752.80x = 1,052,765,484.48
  5. Step 5: Solve for x
    x = 1,052,765,484.48/26,752.80
  6. Step 6: Final answer
    x = 39,351.60

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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.