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Finding the Fourth Proportional to 66,576.88, 91,875.59 and 36,362.22

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Solution

The fourth proportional to 66,576.88, 91,875.59 and 36,362.22 is: 50,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.88 : 91,875.59 = 36,362.22 : x
  2. Step 2: Convert to fraction form
    66,576.88/91,875.59 = 36,362.22/x
  3. Step 3: Cross multiply
    66,576.88x = 91,875.59 × 36,362.22
  4. Step 4: Simplify right side
    66,576.88x = 3,340,800,416.21
  5. Step 5: Solve for x
    x = 3,340,800,416.21/66,576.88
  6. Step 6: Final answer
    x = 50,179.59

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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.