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Finding the Fourth Proportional to 66,196.80, 91,353.60 and 37,900.80

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Solution

The fourth proportional to 66,196.80, 91,353.60 and 37,900.80 is: 52,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,196.80 : 91,353.60 = 37,900.80 : x
  2. Step 2: Convert to fraction form
    66,196.80/91,353.60 = 37,900.80/x
  3. Step 3: Cross multiply
    66,196.80x = 91,353.60 × 37,900.80
  4. Step 4: Simplify right side
    66,196.80x = 3,462,374,522.88
  5. Step 5: Solve for x
    x = 3,462,374,522.88/66,196.80
  6. Step 6: Final answer
    x = 52,304.26

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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.