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Finding the Fourth Proportional to 10,061.10, 15,090 and 2,666.02

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Solution

The fourth proportional to 10,061.10, 15,090 and 2,666.02 is: 3,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,061.10 : 15,090 = 2,666.02 : x
  2. Step 2: Convert to fraction form
    10,061.10/15,090 = 2,666.02/x
  3. Step 3: Cross multiply
    10,061.10x = 15,090 × 2,666.02
  4. Step 4: Simplify right side
    10,061.10x = 40,230,241.80
  5. Step 5: Solve for x
    x = 40,230,241.80/10,061.10
  6. Step 6: Final answer
    x = 3,998.59

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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.