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Finding the Fourth Proportional to 61,035.66, 91,582.65 and 38,874.06

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Solution

The fourth proportional to 61,035.66, 91,582.65 and 38,874.06 is: 58,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,035.66 : 91,582.65 = 38,874.06 : x
  2. Step 2: Convert to fraction form
    61,035.66/91,582.65 = 38,874.06/x
  3. Step 3: Cross multiply
    61,035.66x = 91,582.65 × 38,874.06
  4. Step 4: Simplify right side
    61,035.66x = 3,560,189,431.06
  5. Step 5: Solve for x
    x = 3,560,189,431.06/61,035.66
  6. Step 6: Final answer
    x = 58,329.66

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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.