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Finding the Fourth Proportional to 66,328.32, 91,517.32 and 37,641.60

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Solution

The fourth proportional to 66,328.32, 91,517.32 and 37,641.60 is: 51,936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,328.32 : 91,517.32 = 37,641.60 : x
  2. Step 2: Convert to fraction form
    66,328.32/91,517.32 = 37,641.60/x
  3. Step 3: Cross multiply
    66,328.32x = 91,517.32 × 37,641.60
  4. Step 4: Simplify right side
    66,328.32x = 3,444,858,352.51
  5. Step 5: Solve for x
    x = 3,444,858,352.51/66,328.32
  6. Step 6: Final answer
    x = 51,936.46

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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.