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Finding the Fourth Proportional to 26,943.44, 40,422.84 and 9,417.68

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Solution

The fourth proportional to 26,943.44, 40,422.84 and 9,417.68 is: 14,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,943.44 : 40,422.84 = 9,417.68 : x
  2. Step 2: Convert to fraction form
    26,943.44/40,422.84 = 9,417.68/x
  3. Step 3: Cross multiply
    26,943.44x = 40,422.84 × 9,417.68
  4. Step 4: Simplify right side
    26,943.44x = 380,689,371.81
  5. Step 5: Solve for x
    x = 380,689,371.81/26,943.44
  6. Step 6: Final answer
    x = 14,129.20

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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.