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Finding the Fourth Proportional to 66,266.86, 99,399.81 and 26,823.41

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Solution

The fourth proportional to 66,266.86, 99,399.81 and 26,823.41 is: 40,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,266.86 : 99,399.81 = 26,823.41 : x
  2. Step 2: Convert to fraction form
    66,266.86/99,399.81 = 26,823.41/x
  3. Step 3: Cross multiply
    66,266.86x = 99,399.81 × 26,823.41
  4. Step 4: Simplify right side
    66,266.86x = 2,666,241,857.55
  5. Step 5: Solve for x
    x = 2,666,241,857.55/66,266.86
  6. Step 6: Final answer
    x = 40,234.92

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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.