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Finding the Fourth Proportional to 61,806.48, 85,286.56 and 37,934.16

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Solution

The fourth proportional to 61,806.48, 85,286.56 and 37,934.16 is: 52,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,806.48 : 85,286.56 = 37,934.16 : x
  2. Step 2: Convert to fraction form
    61,806.48/85,286.56 = 37,934.16/x
  3. Step 3: Cross multiply
    61,806.48x = 85,286.56 × 37,934.16
  4. Step 4: Simplify right side
    61,806.48x = 3,235,274,012.89
  5. Step 5: Solve for x
    x = 3,235,274,012.89/61,806.48
  6. Step 6: Final answer
    x = 52,345.22

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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.