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Finding the Fourth Proportional to 61,062.57, 91,599.66 and 18,943.11

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Solution

The fourth proportional to 61,062.57, 91,599.66 and 18,943.11 is: 28,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,062.57 : 91,599.66 = 18,943.11 : x
  2. Step 2: Convert to fraction form
    61,062.57/91,599.66 = 18,943.11/x
  3. Step 3: Cross multiply
    61,062.57x = 91,599.66 × 18,943.11
  4. Step 4: Simplify right side
    61,062.57x = 1,735,182,435.34
  5. Step 5: Solve for x
    x = 1,735,182,435.34/61,062.57
  6. Step 6: Final answer
    x = 28,416.47

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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.