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Finding the Fourth Proportional to 61,961.16, 85,506.61 and 35,108.64

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Solution

The fourth proportional to 61,961.16, 85,506.61 and 35,108.64 is: 48,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,961.16 : 85,506.61 = 35,108.64 : x
  2. Step 2: Convert to fraction form
    61,961.16/85,506.61 = 35,108.64/x
  3. Step 3: Cross multiply
    61,961.16x = 85,506.61 × 35,108.64
  4. Step 4: Simplify right side
    61,961.16x = 3,002,020,788.11
  5. Step 5: Solve for x
    x = 3,002,020,788.11/61,961.16
  6. Step 6: Final answer
    x = 48,450.04

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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.