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Finding the Fourth Proportional to 66,230.64, 91,398.71 and 36,016.29

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Solution

The fourth proportional to 66,230.64, 91,398.71 and 36,016.29 is: 49,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.64 : 91,398.71 = 36,016.29 : x
  2. Step 2: Convert to fraction form
    66,230.64/91,398.71 = 36,016.29/x
  3. Step 3: Cross multiply
    66,230.64x = 91,398.71 × 36,016.29
  4. Step 4: Simplify right side
    66,230.64x = 3,291,842,535.03
  5. Step 5: Solve for x
    x = 3,291,842,535.03/66,230.64
  6. Step 6: Final answer
    x = 49,702.71

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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.