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Finding the Fourth Proportional to 66,235.20, 99,352.80 and 62,865.60

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Solution

The fourth proportional to 66,235.20, 99,352.80 and 62,865.60 is: 94,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.20 : 99,352.80 = 62,865.60 : x
  2. Step 2: Convert to fraction form
    66,235.20/99,352.80 = 62,865.60/x
  3. Step 3: Cross multiply
    66,235.20x = 99,352.80 × 62,865.60
  4. Step 4: Simplify right side
    66,235.20x = 6,245,873,383.68
  5. Step 5: Solve for x
    x = 6,245,873,383.68/66,235.20
  6. Step 6: Final answer
    x = 94,298.40

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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.