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Finding the Fourth Proportional to 61,296.78, 91,898.44 and 31,695.74

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Solution

The fourth proportional to 61,296.78, 91,898.44 and 31,695.74 is: 47,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,296.78 : 91,898.44 = 31,695.74 : x
  2. Step 2: Convert to fraction form
    61,296.78/91,898.44 = 31,695.74/x
  3. Step 3: Cross multiply
    61,296.78x = 91,898.44 × 31,695.74
  4. Step 4: Simplify right side
    61,296.78x = 2,912,789,060.65
  5. Step 5: Solve for x
    x = 2,912,789,060.65/61,296.78
  6. Step 6: Final answer
    x = 47,519.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.