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Finding the Fourth Proportional to 7,156.71, 10,734.51 and 3,644.51

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Solution

The fourth proportional to 7,156.71, 10,734.51 and 3,644.51 is: 5,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.71 : 10,734.51 = 3,644.51 : x
  2. Step 2: Convert to fraction form
    7,156.71/10,734.51 = 3,644.51/x
  3. Step 3: Cross multiply
    7,156.71x = 10,734.51 × 3,644.51
  4. Step 4: Simplify right side
    7,156.71x = 39,121,975.37
  5. Step 5: Solve for x
    x = 39,121,975.37/7,156.71
  6. Step 6: Final answer
    x = 5,466.47

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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.