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Finding the Fourth Proportional to 63,509.87, 87,647.56 and 35,215.56

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Solution

The fourth proportional to 63,509.87, 87,647.56 and 35,215.56 is: 48,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,509.87 : 87,647.56 = 35,215.56 : x
  2. Step 2: Convert to fraction form
    63,509.87/87,647.56 = 35,215.56/x
  3. Step 3: Cross multiply
    63,509.87x = 87,647.56 × 35,215.56
  4. Step 4: Simplify right side
    63,509.87x = 3,086,557,819.99
  5. Step 5: Solve for x
    x = 3,086,557,819.99/63,509.87
  6. Step 6: Final answer
    x = 48,599.65

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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.