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Finding the Fourth Proportional to 15,128.82, 22,664.07 and 7,343.10

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Solution

The fourth proportional to 15,128.82, 22,664.07 and 7,343.10 is: 11,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.82 : 22,664.07 = 7,343.10 : x
  2. Step 2: Convert to fraction form
    15,128.82/22,664.07 = 7,343.10/x
  3. Step 3: Cross multiply
    15,128.82x = 22,664.07 × 7,343.10
  4. Step 4: Simplify right side
    15,128.82x = 166,424,532.42
  5. Step 5: Solve for x
    x = 166,424,532.42/15,128.82
  6. Step 6: Final answer
    x = 11,000.50

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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.