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Finding the Fourth Proportional to 62,869.30, 86,757.91 and 34,574.99

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Solution

The fourth proportional to 62,869.30, 86,757.91 and 34,574.99 is: 47,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,869.30 : 86,757.91 = 34,574.99 : x
  2. Step 2: Convert to fraction form
    62,869.30/86,757.91 = 34,574.99/x
  3. Step 3: Cross multiply
    62,869.30x = 86,757.91 × 34,574.99
  4. Step 4: Simplify right side
    62,869.30x = 2,999,653,870.67
  5. Step 5: Solve for x
    x = 2,999,653,870.67/62,869.30
  6. Step 6: Final answer
    x = 47,712.54

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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.