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Finding the Fourth Proportional to 7,048.66, 10,578.12 and 2,666.11

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Solution

The fourth proportional to 7,048.66, 10,578.12 and 2,666.11 is: 4,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.66 : 10,578.12 = 2,666.11 : x
  2. Step 2: Convert to fraction form
    7,048.66/10,578.12 = 2,666.11/x
  3. Step 3: Cross multiply
    7,048.66x = 10,578.12 × 2,666.11
  4. Step 4: Simplify right side
    7,048.66x = 28,202,431.51
  5. Step 5: Solve for x
    x = 28,202,431.51/7,048.66
  6. Step 6: Final answer
    x = 4,001.11

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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.