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Finding the Fourth Proportional to 61,518.12, 84,895.02 and 33,223.80

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Solution

The fourth proportional to 61,518.12, 84,895.02 and 33,223.80 is: 45,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,518.12 : 84,895.02 = 33,223.80 : x
  2. Step 2: Convert to fraction form
    61,518.12/84,895.02 = 33,223.80/x
  3. Step 3: Cross multiply
    61,518.12x = 84,895.02 × 33,223.80
  4. Step 4: Simplify right side
    61,518.12x = 2,820,535,165.48
  5. Step 5: Solve for x
    x = 2,820,535,165.48/61,518.12
  6. Step 6: Final answer
    x = 45,848.85

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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.