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Finding the Fourth Proportional to 40,408.76, 55,810.76 and 26,956.64

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Solution

The fourth proportional to 40,408.76, 55,810.76 and 26,956.64 is: 37,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,408.76 : 55,810.76 = 26,956.64 : x
  2. Step 2: Convert to fraction form
    40,408.76/55,810.76 = 26,956.64/x
  3. Step 3: Cross multiply
    40,408.76x = 55,810.76 × 26,956.64
  4. Step 4: Simplify right side
    40,408.76x = 1,504,470,565.45
  5. Step 5: Solve for x
    x = 1,504,470,565.45/40,408.76
  6. Step 6: Final answer
    x = 37,231.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.