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Finding the Fourth Proportional to 61,536.64, 84,920.52 and 34,685.68

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Solution

The fourth proportional to 61,536.64, 84,920.52 and 34,685.68 is: 47,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,536.64 : 84,920.52 = 34,685.68 : x
  2. Step 2: Convert to fraction form
    61,536.64/84,920.52 = 34,685.68/x
  3. Step 3: Cross multiply
    61,536.64x = 84,920.52 × 34,685.68
  4. Step 4: Simplify right side
    61,536.64x = 2,945,525,982.15
  5. Step 5: Solve for x
    x = 2,945,525,982.15/61,536.64
  6. Step 6: Final answer
    x = 47,866.21

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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.