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Finding the Fourth Proportional to 39,671.87, 59,509.22 and 13,376.84

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Solution

The fourth proportional to 39,671.87, 59,509.22 and 13,376.84 is: 20,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,671.87 : 59,509.22 = 13,376.84 : x
  2. Step 2: Convert to fraction form
    39,671.87/59,509.22 = 13,376.84/x
  3. Step 3: Cross multiply
    39,671.87x = 59,509.22 × 13,376.84
  4. Step 4: Simplify right side
    39,671.87x = 796,044,950.03
  5. Step 5: Solve for x
    x = 796,044,950.03/39,671.87
  6. Step 6: Final answer
    x = 20,065.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.