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Finding the Fourth Proportional to 7,892.66, 10,891.51 and 4,533.11

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Solution

The fourth proportional to 7,892.66, 10,891.51 and 4,533.11 is: 6,255.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.66 : 10,891.51 = 4,533.11 : x
  2. Step 2: Convert to fraction form
    7,892.66/10,891.51 = 4,533.11/x
  3. Step 3: Cross multiply
    7,892.66x = 10,891.51 × 4,533.11
  4. Step 4: Simplify right side
    7,892.66x = 49,372,412.90
  5. Step 5: Solve for x
    x = 49,372,412.90/7,892.66
  6. Step 6: Final answer
    x = 6,255.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.