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Finding the Fourth Proportional to 66,199.98, 91,353.96 and 37,903.80

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Solution

The fourth proportional to 66,199.98, 91,353.96 and 37,903.80 is: 52,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.98 : 91,353.96 = 37,903.80 : x
  2. Step 2: Convert to fraction form
    66,199.98/91,353.96 = 37,903.80/x
  3. Step 3: Cross multiply
    66,199.98x = 91,353.96 × 37,903.80
  4. Step 4: Simplify right side
    66,199.98x = 3,462,662,229.05
  5. Step 5: Solve for x
    x = 3,462,662,229.05/66,199.98
  6. Step 6: Final answer
    x = 52,306.09

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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.