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Finding the Fourth Proportional to 10,859.97, 16,290.11 and 3,068.79

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Solution

The fourth proportional to 10,859.97, 16,290.11 and 3,068.79 is: 4,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.97 : 16,290.11 = 3,068.79 : x
  2. Step 2: Convert to fraction form
    10,859.97/16,290.11 = 3,068.79/x
  3. Step 3: Cross multiply
    10,859.97x = 16,290.11 × 3,068.79
  4. Step 4: Simplify right side
    10,859.97x = 49,990,873.25
  5. Step 5: Solve for x
    x = 49,990,873.25/10,859.97
  6. Step 6: Final answer
    x = 4,603.22

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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.