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Finding the Fourth Proportional to 63,645.86, 87,833.49 and 35,354.18

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Solution

The fourth proportional to 63,645.86, 87,833.49 and 35,354.18 is: 48,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,645.86 : 87,833.49 = 35,354.18 : x
  2. Step 2: Convert to fraction form
    63,645.86/87,833.49 = 35,354.18/x
  3. Step 3: Cross multiply
    63,645.86x = 87,833.49 × 35,354.18
  4. Step 4: Simplify right side
    63,645.86x = 3,105,281,015.49
  5. Step 5: Solve for x
    x = 3,105,281,015.49/63,645.86
  6. Step 6: Final answer
    x = 48,789.99

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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.