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Finding the Fourth Proportional to 8,941.01, 13,411.31 and 5,266.55

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Solution

The fourth proportional to 8,941.01, 13,411.31 and 5,266.55 is: 7,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.01 : 13,411.31 = 5,266.55 : x
  2. Step 2: Convert to fraction form
    8,941.01/13,411.31 = 5,266.55/x
  3. Step 3: Cross multiply
    8,941.01x = 13,411.31 × 5,266.55
  4. Step 4: Simplify right side
    8,941.01x = 70,631,341.88
  5. Step 5: Solve for x
    x = 70,631,341.88/8,941.01
  6. Step 6: Final answer
    x = 7,899.71

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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.