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Finding the Fourth Proportional to 49,642.99, 68,508.99 and 29,221.36

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Solution

The fourth proportional to 49,642.99, 68,508.99 and 29,221.36 is: 40,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,642.99 : 68,508.99 = 29,221.36 : x
  2. Step 2: Convert to fraction form
    49,642.99/68,508.99 = 29,221.36/x
  3. Step 3: Cross multiply
    49,642.99x = 68,508.99 × 29,221.36
  4. Step 4: Simplify right side
    49,642.99x = 2,001,925,688.75
  5. Step 5: Solve for x
    x = 2,001,925,688.75/49,642.99
  6. Step 6: Final answer
    x = 40,326.45

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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.