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Finding the Fourth Proportional to 10,712.43, 14,775.69 and 7,532.37

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Solution

The fourth proportional to 10,712.43, 14,775.69 and 7,532.37 is: 10,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.43 : 14,775.69 = 7,532.37 : x
  2. Step 2: Convert to fraction form
    10,712.43/14,775.69 = 7,532.37/x
  3. Step 3: Cross multiply
    10,712.43x = 14,775.69 × 7,532.37
  4. Step 4: Simplify right side
    10,712.43x = 111,295,964.09
  5. Step 5: Solve for x
    x = 111,295,964.09/10,712.43
  6. Step 6: Final answer
    x = 10,389.42

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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.