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Finding the Fourth Proportional to 63,400.80, 87,493.10 and 35,106.49

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Solution

The fourth proportional to 63,400.80, 87,493.10 and 35,106.49 is: 48,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,400.80 : 87,493.10 = 35,106.49 : x
  2. Step 2: Convert to fraction form
    63,400.80/87,493.10 = 35,106.49/x
  3. Step 3: Cross multiply
    63,400.80x = 87,493.10 × 35,106.49
  4. Step 4: Simplify right side
    63,400.80x = 3,071,575,640.22
  5. Step 5: Solve for x
    x = 3,071,575,640.22/63,400.80
  6. Step 6: Final answer
    x = 48,446.95

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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.