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Finding the Fourth Proportional to 61,313.18, 84,609.46 and 35,821.90

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Solution

The fourth proportional to 61,313.18, 84,609.46 and 35,821.90 is: 49,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,313.18 : 84,609.46 = 35,821.90 : x
  2. Step 2: Convert to fraction form
    61,313.18/84,609.46 = 35,821.90/x
  3. Step 3: Cross multiply
    61,313.18x = 84,609.46 × 35,821.90
  4. Step 4: Simplify right side
    61,313.18x = 3,030,871,525.62
  5. Step 5: Solve for x
    x = 3,030,871,525.62/61,313.18
  6. Step 6: Final answer
    x = 49,432.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.