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Finding the Fourth Proportional to 66,527.64, 91,823.88 and 38,249.76

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Solution

The fourth proportional to 66,527.64, 91,823.88 and 38,249.76 is: 52,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,527.64 : 91,823.88 = 38,249.76 : x
  2. Step 2: Convert to fraction form
    66,527.64/91,823.88 = 38,249.76/x
  3. Step 3: Cross multiply
    66,527.64x = 91,823.88 × 38,249.76
  4. Step 4: Simplify right side
    66,527.64x = 3,512,241,372.27
  5. Step 5: Solve for x
    x = 3,512,241,372.27/66,527.64
  6. Step 6: Final answer
    x = 52,793.72

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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.