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Finding the Fourth Proportional to 39,600.96, 59,401.44 and 15,919.28

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Solution

The fourth proportional to 39,600.96, 59,401.44 and 15,919.28 is: 23,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.96 : 59,401.44 = 15,919.28 : x
  2. Step 2: Convert to fraction form
    39,600.96/59,401.44 = 15,919.28/x
  3. Step 3: Cross multiply
    39,600.96x = 59,401.44 × 15,919.28
  4. Step 4: Simplify right side
    39,600.96x = 945,628,155.76
  5. Step 5: Solve for x
    x = 945,628,155.76/39,600.96
  6. Step 6: Final answer
    x = 23,878.92

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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.