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Finding the Fourth Proportional to 66,693.88, 92,027.32 and 38,394.08

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Solution

The fourth proportional to 66,693.88, 92,027.32 and 38,394.08 is: 52,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.88 : 92,027.32 = 38,394.08 : x
  2. Step 2: Convert to fraction form
    66,693.88/92,027.32 = 38,394.08/x
  3. Step 3: Cross multiply
    66,693.88x = 92,027.32 × 38,394.08
  4. Step 4: Simplify right side
    66,693.88x = 3,533,304,286.27
  5. Step 5: Solve for x
    x = 3,533,304,286.27/66,693.88
  6. Step 6: Final answer
    x = 52,977.94

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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.