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Finding the Fourth Proportional to 7,261.91, 10,897.71 and 2,644.91

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Solution

The fourth proportional to 7,261.91, 10,897.71 and 2,644.91 is: 3,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.91 : 10,897.71 = 2,644.91 : x
  2. Step 2: Convert to fraction form
    7,261.91/10,897.71 = 2,644.91/x
  3. Step 3: Cross multiply
    7,261.91x = 10,897.71 × 2,644.91
  4. Step 4: Simplify right side
    7,261.91x = 28,823,462.16
  5. Step 5: Solve for x
    x = 28,823,462.16/7,261.91
  6. Step 6: Final answer
    x = 3,969.13

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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.