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Finding the Fourth Proportional to 2,666.79, 3,683.48 and 1,884.33

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Solution

The fourth proportional to 2,666.79, 3,683.48 and 1,884.33 is: 2,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.79 : 3,683.48 = 1,884.33 : x
  2. Step 2: Convert to fraction form
    2,666.79/3,683.48 = 1,884.33/x
  3. Step 3: Cross multiply
    2,666.79x = 3,683.48 × 1,884.33
  4. Step 4: Simplify right side
    2,666.79x = 6,940,882.45
  5. Step 5: Solve for x
    x = 6,940,882.45/2,666.79
  6. Step 6: Final answer
    x = 2,602.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.