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Finding the Fourth Proportional to 66,382.08, 91,607.31 and 36,574.08

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Solution

The fourth proportional to 66,382.08, 91,607.31 and 36,574.08 is: 50,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,382.08 : 91,607.31 = 36,574.08 : x
  2. Step 2: Convert to fraction form
    66,382.08/91,607.31 = 36,574.08/x
  3. Step 3: Cross multiply
    66,382.08x = 91,607.31 × 36,574.08
  4. Step 4: Simplify right side
    66,382.08x = 3,350,453,084.52
  5. Step 5: Solve for x
    x = 3,350,453,084.52/66,382.08
  6. Step 6: Final answer
    x = 50,472.25

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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.