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Finding the Fourth Proportional to 53,775, 74,205.99 and 29,900.79

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Solution

The fourth proportional to 53,775, 74,205.99 and 29,900.79 is: 41,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,775 : 74,205.99 = 29,900.79 : x
  2. Step 2: Convert to fraction form
    53,775/74,205.99 = 29,900.79/x
  3. Step 3: Cross multiply
    53,775x = 74,205.99 × 29,900.79
  4. Step 4: Simplify right side
    53,775x = 2,218,817,723.73
  5. Step 5: Solve for x
    x = 2,218,817,723.73/53,775
  6. Step 6: Final answer
    x = 41,261.14

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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.