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Finding the Fourth Proportional to 8,950.68, 13,428.36 and 5,256

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Solution

The fourth proportional to 8,950.68, 13,428.36 and 5,256 is: 7,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.68 : 13,428.36 = 5,256 : x
  2. Step 2: Convert to fraction form
    8,950.68/13,428.36 = 5,256/x
  3. Step 3: Cross multiply
    8,950.68x = 13,428.36 × 5,256
  4. Step 4: Simplify right side
    8,950.68x = 70,579,460.16
  5. Step 5: Solve for x
    x = 70,579,460.16/8,950.68
  6. Step 6: Final answer
    x = 7,885.37

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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.