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Finding the Fourth Proportional to 40,698.40, 60,928.80 and 29,034.40

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Solution

The fourth proportional to 40,698.40, 60,928.80 and 29,034.40 is: 43,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.40 : 60,928.80 = 29,034.40 : x
  2. Step 2: Convert to fraction form
    40,698.40/60,928.80 = 29,034.40/x
  3. Step 3: Cross multiply
    40,698.40x = 60,928.80 × 29,034.40
  4. Step 4: Simplify right side
    40,698.40x = 1,769,031,150.72
  5. Step 5: Solve for x
    x = 1,769,031,150.72/40,698.40
  6. Step 6: Final answer
    x = 43,466.85

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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.