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Finding the Fourth Proportional to 66,844.50, 92,242.72 and 40,001.82

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Solution

The fourth proportional to 66,844.50, 92,242.72 and 40,001.82 is: 55,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,844.50 : 92,242.72 = 40,001.82 : x
  2. Step 2: Convert to fraction form
    66,844.50/92,242.72 = 40,001.82/x
  3. Step 3: Cross multiply
    66,844.50x = 92,242.72 × 40,001.82
  4. Step 4: Simplify right side
    66,844.50x = 3,689,876,681.75
  5. Step 5: Solve for x
    x = 3,689,876,681.75/66,844.50
  6. Step 6: Final answer
    x = 55,200.90

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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.