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Finding the Fourth Proportional to 18,061.86, 27,087.30 and 6,967.68

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Solution

The fourth proportional to 18,061.86, 27,087.30 and 6,967.68 is: 10,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.86 : 27,087.30 = 6,967.68 : x
  2. Step 2: Convert to fraction form
    18,061.86/27,087.30 = 6,967.68/x
  3. Step 3: Cross multiply
    18,061.86x = 27,087.30 × 6,967.68
  4. Step 4: Simplify right side
    18,061.86x = 188,735,638.46
  5. Step 5: Solve for x
    x = 188,735,638.46/18,061.86
  6. Step 6: Final answer
    x = 10,449.40

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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.