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Finding the Fourth Proportional to 61,873.53, 85,385.52 and 33,579.21

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Solution

The fourth proportional to 61,873.53, 85,385.52 and 33,579.21 is: 46,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,873.53 : 85,385.52 = 33,579.21 : x
  2. Step 2: Convert to fraction form
    61,873.53/85,385.52 = 33,579.21/x
  3. Step 3: Cross multiply
    61,873.53x = 85,385.52 × 33,579.21
  4. Step 4: Simplify right side
    61,873.53x = 2,867,178,307.04
  5. Step 5: Solve for x
    x = 2,867,178,307.04/61,873.53
  6. Step 6: Final answer
    x = 46,339.34

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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.