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Finding the Fourth Proportional to 61,998.45, 85,552.09 and 35,143.30

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Solution

The fourth proportional to 61,998.45, 85,552.09 and 35,143.30 is: 48,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,998.45 : 85,552.09 = 35,143.30 : x
  2. Step 2: Convert to fraction form
    61,998.45/85,552.09 = 35,143.30/x
  3. Step 3: Cross multiply
    61,998.45x = 85,552.09 × 35,143.30
  4. Step 4: Simplify right side
    61,998.45x = 3,006,582,764.50
  5. Step 5: Solve for x
    x = 3,006,582,764.50/61,998.45
  6. Step 6: Final answer
    x = 48,494.48

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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.