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Finding the Fourth Proportional to 2,666.01, 3,679.11 and 1,547.62

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Solution

The fourth proportional to 2,666.01, 3,679.11 and 1,547.62 is: 2,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.01 : 3,679.11 = 1,547.62 : x
  2. Step 2: Convert to fraction form
    2,666.01/3,679.11 = 1,547.62/x
  3. Step 3: Cross multiply
    2,666.01x = 3,679.11 × 1,547.62
  4. Step 4: Simplify right side
    2,666.01x = 5,693,864.22
  5. Step 5: Solve for x
    x = 5,693,864.22/2,666.01
  6. Step 6: Final answer
    x = 2,135.73

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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.