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Finding the Fourth Proportional to 66,152.25, 91,290.11 and 36,344.25

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Solution

The fourth proportional to 66,152.25, 91,290.11 and 36,344.25 is: 50,155.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,152.25 : 91,290.11 = 36,344.25 : x
  2. Step 2: Convert to fraction form
    66,152.25/91,290.11 = 36,344.25/x
  3. Step 3: Cross multiply
    66,152.25x = 91,290.11 × 36,344.25
  4. Step 4: Simplify right side
    66,152.25x = 3,317,870,398.65
  5. Step 5: Solve for x
    x = 3,317,870,398.65/66,152.25
  6. Step 6: Final answer
    x = 50,155.07

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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.