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Finding the Fourth Proportional to 39,406.76, 59,110.15 and 11,704.76

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Solution

The fourth proportional to 39,406.76, 59,110.15 and 11,704.76 is: 17,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.76 : 59,110.15 = 11,704.76 : x
  2. Step 2: Convert to fraction form
    39,406.76/59,110.15 = 11,704.76/x
  3. Step 3: Cross multiply
    39,406.76x = 59,110.15 × 11,704.76
  4. Step 4: Simplify right side
    39,406.76x = 691,870,119.31
  5. Step 5: Solve for x
    x = 691,870,119.31/39,406.76
  6. Step 6: Final answer
    x = 17,557.14

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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.