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Finding the Fourth Proportional to 61,062.89, 91,607.43 and 18,942.08

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Solution

The fourth proportional to 61,062.89, 91,607.43 and 18,942.08 is: 28,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,062.89 : 91,607.43 = 18,942.08 : x
  2. Step 2: Convert to fraction form
    61,062.89/91,607.43 = 18,942.08/x
  3. Step 3: Cross multiply
    61,062.89x = 91,607.43 × 18,942.08
  4. Step 4: Simplify right side
    61,062.89x = 1,735,234,809.62
  5. Step 5: Solve for x
    x = 1,735,234,809.62/61,062.89
  6. Step 6: Final answer
    x = 28,417.18

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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.