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Finding the Fourth Proportional to 61,881.88, 85,396.08 and 35,029.48

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Solution

The fourth proportional to 61,881.88, 85,396.08 and 35,029.48 is: 48,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.88 : 85,396.08 = 35,029.48 : x
  2. Step 2: Convert to fraction form
    61,881.88/85,396.08 = 35,029.48/x
  3. Step 3: Cross multiply
    61,881.88x = 85,396.08 × 35,029.48
  4. Step 4: Simplify right side
    61,881.88x = 2,991,380,276.44
  5. Step 5: Solve for x
    x = 2,991,380,276.44/61,881.88
  6. Step 6: Final answer
    x = 48,340.16

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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.