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Finding the Fourth Proportional to 61,159.41, 91,752.93 and 21,716.55

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Solution

The fourth proportional to 61,159.41, 91,752.93 and 21,716.55 is: 32,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.41 : 91,752.93 = 21,716.55 : x
  2. Step 2: Convert to fraction form
    61,159.41/91,752.93 = 21,716.55/x
  3. Step 3: Cross multiply
    61,159.41x = 91,752.93 × 21,716.55
  4. Step 4: Simplify right side
    61,159.41x = 1,992,557,091.99
  5. Step 5: Solve for x
    x = 1,992,557,091.99/61,159.41
  6. Step 6: Final answer
    x = 32,579.73

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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.