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Finding the Fourth Proportional to 40,641.40, 61,107.90 and 34,226.20

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Solution

The fourth proportional to 40,641.40, 61,107.90 and 34,226.20 is: 51,462.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,641.40 : 61,107.90 = 34,226.20 : x
  2. Step 2: Convert to fraction form
    40,641.40/61,107.90 = 34,226.20/x
  3. Step 3: Cross multiply
    40,641.40x = 61,107.90 × 34,226.20
  4. Step 4: Simplify right side
    40,641.40x = 2,091,491,206.98
  5. Step 5: Solve for x
    x = 2,091,491,206.98/40,641.40
  6. Step 6: Final answer
    x = 51,462.09

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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.