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Finding the Fourth Proportional to 2,606.68, 3,889.81 and 2,329.80

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Solution

The fourth proportional to 2,606.68, 3,889.81 and 2,329.80 is: 3,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.68 : 3,889.81 = 2,329.80 : x
  2. Step 2: Convert to fraction form
    2,606.68/3,889.81 = 2,329.80/x
  3. Step 3: Cross multiply
    2,606.68x = 3,889.81 × 2,329.80
  4. Step 4: Simplify right side
    2,606.68x = 9,062,479.34
  5. Step 5: Solve for x
    x = 9,062,479.34/2,606.68
  6. Step 6: Final answer
    x = 3,476.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.