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Finding the Fourth Proportional to 40,718.40, 60,958.80 and 29,054.40

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Solution

The fourth proportional to 40,718.40, 60,958.80 and 29,054.40 is: 43,496.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,718.40 : 60,958.80 = 29,054.40 : x
  2. Step 2: Convert to fraction form
    40,718.40/60,958.80 = 29,054.40/x
  3. Step 3: Cross multiply
    40,718.40x = 60,958.80 × 29,054.40
  4. Step 4: Simplify right side
    40,718.40x = 1,771,121,358.72
  5. Step 5: Solve for x
    x = 1,771,121,358.72/40,718.40
  6. Step 6: Final answer
    x = 43,496.83

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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.