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Finding the Fourth Proportional to 55,007, 75,909.48 and 29,856.50

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Solution

The fourth proportional to 55,007, 75,909.48 and 29,856.50 is: 41,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007 : 75,909.48 = 29,856.50 : x
  2. Step 2: Convert to fraction form
    55,007/75,909.48 = 29,856.50/x
  3. Step 3: Cross multiply
    55,007x = 75,909.48 × 29,856.50
  4. Step 4: Simplify right side
    55,007x = 2,266,391,389.62
  5. Step 5: Solve for x
    x = 2,266,391,389.62/55,007
  6. Step 6: Final answer
    x = 41,201.87

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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.