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Finding the Fourth Proportional to 66,353.75, 91,568.18 and 36,545.75

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Solution

The fourth proportional to 66,353.75, 91,568.18 and 36,545.75 is: 50,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,353.75 : 91,568.18 = 36,545.75 : x
  2. Step 2: Convert to fraction form
    66,353.75/91,568.18 = 36,545.75/x
  3. Step 3: Cross multiply
    66,353.75x = 91,568.18 × 36,545.75
  4. Step 4: Simplify right side
    66,353.75x = 3,346,427,631.51
  5. Step 5: Solve for x
    x = 3,346,427,631.51/66,353.75
  6. Step 6: Final answer
    x = 50,433.14

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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.