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Finding the Fourth Proportional to 63,107.88, 87,089.16 and 34,813.56

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Solution

The fourth proportional to 63,107.88, 87,089.16 and 34,813.56 is: 48,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,107.88 : 87,089.16 = 34,813.56 : x
  2. Step 2: Convert to fraction form
    63,107.88/87,089.16 = 34,813.56/x
  3. Step 3: Cross multiply
    63,107.88x = 87,089.16 × 34,813.56
  4. Step 4: Simplify right side
    63,107.88x = 3,031,883,697.01
  5. Step 5: Solve for x
    x = 3,031,883,697.01/63,107.88
  6. Step 6: Final answer
    x = 48,042.87

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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.