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Finding the Fourth Proportional to 66,932.16, 92,364.76 and 36,717.21

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Solution

The fourth proportional to 66,932.16, 92,364.76 and 36,717.21 is: 50,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,932.16 : 92,364.76 = 36,717.21 : x
  2. Step 2: Convert to fraction form
    66,932.16/92,364.76 = 36,717.21/x
  3. Step 3: Cross multiply
    66,932.16x = 92,364.76 × 36,717.21
  4. Step 4: Simplify right side
    66,932.16x = 3,391,376,289.52
  5. Step 5: Solve for x
    x = 3,391,376,289.52/66,932.16
  6. Step 6: Final answer
    x = 50,668.86

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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.