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Finding the Fourth Proportional to 61,682.45, 85,121.42 and 34,824.74

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Solution

The fourth proportional to 61,682.45, 85,121.42 and 34,824.74 is: 48,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,682.45 : 85,121.42 = 34,824.74 : x
  2. Step 2: Convert to fraction form
    61,682.45/85,121.42 = 34,824.74/x
  3. Step 3: Cross multiply
    61,682.45x = 85,121.42 × 34,824.74
  4. Step 4: Simplify right side
    61,682.45x = 2,964,330,720.20
  5. Step 5: Solve for x
    x = 2,964,330,720.20/61,682.45
  6. Step 6: Final answer
    x = 48,057.93

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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.