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Finding the Fourth Proportional to 63,403.89, 87,493.87 and 35,107.75

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Solution

The fourth proportional to 63,403.89, 87,493.87 and 35,107.75 is: 48,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,403.89 : 87,493.87 = 35,107.75 : x
  2. Step 2: Convert to fraction form
    63,403.89/87,493.87 = 35,107.75/x
  3. Step 3: Cross multiply
    63,403.89x = 87,493.87 × 35,107.75
  4. Step 4: Simplify right side
    63,403.89x = 3,071,712,914.49
  5. Step 5: Solve for x
    x = 3,071,712,914.49/63,403.89
  6. Step 6: Final answer
    x = 48,446.76

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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.