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Finding the Fourth Proportional to 7,614.80, 11,422.10 and 2,068.68

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Solution

The fourth proportional to 7,614.80, 11,422.10 and 2,068.68 is: 3,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.80 : 11,422.10 = 2,068.68 : x
  2. Step 2: Convert to fraction form
    7,614.80/11,422.10 = 2,068.68/x
  3. Step 3: Cross multiply
    7,614.80x = 11,422.10 × 2,068.68
  4. Step 4: Simplify right side
    7,614.80x = 23,628,669.83
  5. Step 5: Solve for x
    x = 23,628,669.83/7,614.80
  6. Step 6: Final answer
    x = 3,102.99

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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.