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Finding the Fourth Proportional to 61,976.34, 85,568.54 and 47,610.59

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Solution

The fourth proportional to 61,976.34, 85,568.54 and 47,610.59 is: 65,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,976.34 : 85,568.54 = 47,610.59 : x
  2. Step 2: Convert to fraction form
    61,976.34/85,568.54 = 47,610.59/x
  3. Step 3: Cross multiply
    61,976.34x = 85,568.54 × 47,610.59
  4. Step 4: Simplify right side
    61,976.34x = 4,073,968,008.94
  5. Step 5: Solve for x
    x = 4,073,968,008.94/61,976.34
  6. Step 6: Final answer
    x = 65,734.25

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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.