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Finding the Fourth Proportional to 8,941.93, 12,344.31 and 5,586.61

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Solution

The fourth proportional to 8,941.93, 12,344.31 and 5,586.61 is: 7,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.93 : 12,344.31 = 5,586.61 : x
  2. Step 2: Convert to fraction form
    8,941.93/12,344.31 = 5,586.61/x
  3. Step 3: Cross multiply
    8,941.93x = 12,344.31 × 5,586.61
  4. Step 4: Simplify right side
    8,941.93x = 68,962,756.03
  5. Step 5: Solve for x
    x = 68,962,756.03/8,941.93
  6. Step 6: Final answer
    x = 7,712.29

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1.5x scale

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.