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Finding the Fourth Proportional to 61,518, 84,894.86 and 33,223.70

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Solution

The fourth proportional to 61,518, 84,894.86 and 33,223.70 is: 45,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,518 : 84,894.86 = 33,223.70 : x
  2. Step 2: Convert to fraction form
    61,518/84,894.86 = 33,223.70/x
  3. Step 3: Cross multiply
    61,518x = 84,894.86 × 33,223.70
  4. Step 4: Simplify right side
    61,518x = 2,820,520,769.59
  5. Step 5: Solve for x
    x = 2,820,520,769.59/61,518
  6. Step 6: Final answer
    x = 45,848.71

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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.