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Finding the Fourth Proportional to 23,756.49, 35,624.21 and 12,661.11

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Solution

The fourth proportional to 23,756.49, 35,624.21 and 12,661.11 is: 18,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,756.49 : 35,624.21 = 12,661.11 : x
  2. Step 2: Convert to fraction form
    23,756.49/35,624.21 = 12,661.11/x
  3. Step 3: Cross multiply
    23,756.49x = 35,624.21 × 12,661.11
  4. Step 4: Simplify right side
    23,756.49x = 451,041,978.17
  5. Step 5: Solve for x
    x = 451,041,978.17/23,756.49
  6. Step 6: Final answer
    x = 18,986.05

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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.