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Finding the Fourth Proportional to 66,823.02, 92,215.50 and 36,608.31

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Solution

The fourth proportional to 66,823.02, 92,215.50 and 36,608.31 is: 50,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,823.02 : 92,215.50 = 36,608.31 : x
  2. Step 2: Convert to fraction form
    66,823.02/92,215.50 = 36,608.31/x
  3. Step 3: Cross multiply
    66,823.02x = 92,215.50 × 36,608.31
  4. Step 4: Simplify right side
    66,823.02x = 3,375,853,610.81
  5. Step 5: Solve for x
    x = 3,375,853,610.81/66,823.02
  6. Step 6: Final answer
    x = 50,519.32

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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.