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Finding the Fourth Proportional to 61,961.75, 85,506.91 and 35,104.20

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Solution

The fourth proportional to 61,961.75, 85,506.91 and 35,104.20 is: 48,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,961.75 : 85,506.91 = 35,104.20 : x
  2. Step 2: Convert to fraction form
    61,961.75/85,506.91 = 35,104.20/x
  3. Step 3: Cross multiply
    61,961.75x = 85,506.91 × 35,104.20
  4. Step 4: Simplify right side
    61,961.75x = 3,001,651,670.02
  5. Step 5: Solve for x
    x = 3,001,651,670.02/61,961.75
  6. Step 6: Final answer
    x = 48,443.62

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1.5x scale

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.