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Finding the Fourth Proportional to 40,673.40, 60,891.30 and 29,009.40

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Solution

The fourth proportional to 40,673.40, 60,891.30 and 29,009.40 is: 43,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,673.40 : 60,891.30 = 29,009.40 : x
  2. Step 2: Convert to fraction form
    40,673.40/60,891.30 = 29,009.40/x
  3. Step 3: Cross multiply
    40,673.40x = 60,891.30 × 29,009.40
  4. Step 4: Simplify right side
    40,673.40x = 1,766,420,078.22
  5. Step 5: Solve for x
    x = 1,766,420,078.22/40,673.40
  6. Step 6: Final answer
    x = 43,429.37

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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.