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Finding the Fourth Proportional to 61,997.45, 85,550.72 and 35,142.30

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Solution

The fourth proportional to 61,997.45, 85,550.72 and 35,142.30 is: 48,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,997.45 : 85,550.72 = 35,142.30 : x
  2. Step 2: Convert to fraction form
    61,997.45/85,550.72 = 35,142.30/x
  3. Step 3: Cross multiply
    61,997.45x = 85,550.72 × 35,142.30
  4. Step 4: Simplify right side
    61,997.45x = 3,006,448,891.74
  5. Step 5: Solve for x
    x = 3,006,448,891.74/61,997.45
  6. Step 6: Final answer
    x = 48,493.11

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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.