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Finding the Fourth Proportional to 18,515.76, 27,778.02 and 6,035.85

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Solution

The fourth proportional to 18,515.76, 27,778.02 and 6,035.85 is: 9,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.76 : 27,778.02 = 6,035.85 : x
  2. Step 2: Convert to fraction form
    18,515.76/27,778.02 = 6,035.85/x
  3. Step 3: Cross multiply
    18,515.76x = 27,778.02 × 6,035.85
  4. Step 4: Simplify right side
    18,515.76x = 167,663,973.33
  5. Step 5: Solve for x
    x = 167,663,973.33/18,515.76
  6. Step 6: Final answer
    x = 9,055.21

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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.