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Finding the Fourth Proportional to 61,390.29, 84,717.73 and 34,532.79

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Solution

The fourth proportional to 61,390.29, 84,717.73 and 34,532.79 is: 47,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.29 : 84,717.73 = 34,532.79 : x
  2. Step 2: Convert to fraction form
    61,390.29/84,717.73 = 34,532.79/x
  3. Step 3: Cross multiply
    61,390.29x = 84,717.73 × 34,532.79
  4. Step 4: Simplify right side
    61,390.29x = 2,925,539,579.37
  5. Step 5: Solve for x
    x = 2,925,539,579.37/61,390.29
  6. Step 6: Final answer
    x = 47,654.76

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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.