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Finding the Fourth Proportional to 61,919.66, 92,879.48 and 15,172.13

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Solution

The fourth proportional to 61,919.66, 92,879.48 and 15,172.13 is: 22,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.66 : 92,879.48 = 15,172.13 : x
  2. Step 2: Convert to fraction form
    61,919.66/92,879.48 = 15,172.13/x
  3. Step 3: Cross multiply
    61,919.66x = 92,879.48 × 15,172.13
  4. Step 4: Simplify right side
    61,919.66x = 1,409,179,544.89
  5. Step 5: Solve for x
    x = 1,409,179,544.89/61,919.66
  6. Step 6: Final answer
    x = 22,758.19

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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.