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Finding the Fourth Proportional to 7,207.86, 10,807.95 and 3,696.45

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Solution

The fourth proportional to 7,207.86, 10,807.95 and 3,696.45 is: 5,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.86 : 10,807.95 = 3,696.45 : x
  2. Step 2: Convert to fraction form
    7,207.86/10,807.95 = 3,696.45/x
  3. Step 3: Cross multiply
    7,207.86x = 10,807.95 × 3,696.45
  4. Step 4: Simplify right side
    7,207.86x = 39,950,974.26
  5. Step 5: Solve for x
    x = 39,950,974.26/7,207.86
  6. Step 6: Final answer
    x = 5,542.70

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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.