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Finding the Fourth Proportional to 66,887.94, 92,282.45 and 38,186.94

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Solution

The fourth proportional to 66,887.94, 92,282.45 and 38,186.94 is: 52,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887.94 : 92,282.45 = 38,186.94 : x
  2. Step 2: Convert to fraction form
    66,887.94/92,282.45 = 38,186.94/x
  3. Step 3: Cross multiply
    66,887.94x = 92,282.45 × 38,186.94
  4. Step 4: Simplify right side
    66,887.94x = 3,523,984,190.27
  5. Step 5: Solve for x
    x = 3,523,984,190.27/66,887.94
  6. Step 6: Final answer
    x = 52,684.90

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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.