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Finding the Fourth Proportional to 66,800.50, 92,182.87 and 38,119.64

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Solution

The fourth proportional to 66,800.50, 92,182.87 and 38,119.64 is: 52,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,800.50 : 92,182.87 = 38,119.64 : x
  2. Step 2: Convert to fraction form
    66,800.50/92,182.87 = 38,119.64/x
  3. Step 3: Cross multiply
    66,800.50x = 92,182.87 × 38,119.64
  4. Step 4: Simplify right side
    66,800.50x = 3,513,977,405.30
  5. Step 5: Solve for x
    x = 3,513,977,405.30/66,800.50
  6. Step 6: Final answer
    x = 52,604.06

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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.