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Finding the Fourth Proportional to 59,338.56, 81,954.40 and 40,442.88

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Solution

The fourth proportional to 59,338.56, 81,954.40 and 40,442.88 is: 55,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,338.56 : 81,954.40 = 40,442.88 : x
  2. Step 2: Convert to fraction form
    59,338.56/81,954.40 = 40,442.88/x
  3. Step 3: Cross multiply
    59,338.56x = 81,954.40 × 40,442.88
  4. Step 4: Simplify right side
    59,338.56x = 3,314,471,964.67
  5. Step 5: Solve for x
    x = 3,314,471,964.67/59,338.56
  6. Step 6: Final answer
    x = 55,856.97

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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.