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Finding the Fourth Proportional to 61,555.14, 84,927.21 and 37,656.90

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Solution

The fourth proportional to 61,555.14, 84,927.21 and 37,656.90 is: 51,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,555.14 : 84,927.21 = 37,656.90 : x
  2. Step 2: Convert to fraction form
    61,555.14/84,927.21 = 37,656.90/x
  3. Step 3: Cross multiply
    61,555.14x = 84,927.21 × 37,656.90
  4. Step 4: Simplify right side
    61,555.14x = 3,198,095,454.25
  5. Step 5: Solve for x
    x = 3,198,095,454.25/61,555.14
  6. Step 6: Final answer
    x = 51,954.97

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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.