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Finding the Fourth Proportional to 26,604.81, 39,913.49 and 7,885.01

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Solution

The fourth proportional to 26,604.81, 39,913.49 and 7,885.01 is: 11,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,604.81 : 39,913.49 = 7,885.01 : x
  2. Step 2: Convert to fraction form
    26,604.81/39,913.49 = 7,885.01/x
  3. Step 3: Cross multiply
    26,604.81x = 39,913.49 × 7,885.01
  4. Step 4: Simplify right side
    26,604.81x = 314,718,028.79
  5. Step 5: Solve for x
    x = 314,718,028.79/26,604.81
  6. Step 6: Final answer
    x = 11,829.37

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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.