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Finding the Fourth Proportional to 61,202.80, 91,858.20 and 36,211.60

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Solution

The fourth proportional to 61,202.80, 91,858.20 and 36,211.60 is: 54,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,202.80 : 91,858.20 = 36,211.60 : x
  2. Step 2: Convert to fraction form
    61,202.80/91,858.20 = 36,211.60/x
  3. Step 3: Cross multiply
    61,202.80x = 91,858.20 × 36,211.60
  4. Step 4: Simplify right side
    61,202.80x = 3,326,332,395.12
  5. Step 5: Solve for x
    x = 3,326,332,395.12/61,202.80
  6. Step 6: Final answer
    x = 54,349.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.