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Finding the Fourth Proportional to 62,216, 85,859.44 and 33,921.80

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Solution

The fourth proportional to 62,216, 85,859.44 and 33,921.80 is: 46,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,216 : 85,859.44 = 33,921.80 : x
  2. Step 2: Convert to fraction form
    62,216/85,859.44 = 33,921.80/x
  3. Step 3: Cross multiply
    62,216x = 85,859.44 × 33,921.80
  4. Step 4: Simplify right side
    62,216x = 2,912,506,751.79
  5. Step 5: Solve for x
    x = 2,912,506,751.79/62,216
  6. Step 6: Final answer
    x = 46,812.83

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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.