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Finding the Fourth Proportional to 61,101.63, 91,600.20 and 27,809.82

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Solution

The fourth proportional to 61,101.63, 91,600.20 and 27,809.82 is: 41,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,101.63 : 91,600.20 = 27,809.82 : x
  2. Step 2: Convert to fraction form
    61,101.63/91,600.20 = 27,809.82/x
  3. Step 3: Cross multiply
    61,101.63x = 91,600.20 × 27,809.82
  4. Step 4: Simplify right side
    61,101.63x = 2,547,385,073.96
  5. Step 5: Solve for x
    x = 2,547,385,073.96/61,101.63
  6. Step 6: Final answer
    x = 41,690.95

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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.