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Finding the Fourth Proportional to 66,475.96, 99,630.79 and 33,205.32

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Solution

The fourth proportional to 66,475.96, 99,630.79 and 33,205.32 is: 49,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.96 : 99,630.79 = 33,205.32 : x
  2. Step 2: Convert to fraction form
    66,475.96/99,630.79 = 33,205.32/x
  3. Step 3: Cross multiply
    66,475.96x = 99,630.79 × 33,205.32
  4. Step 4: Simplify right side
    66,475.96x = 3,308,272,263.80
  5. Step 5: Solve for x
    x = 3,308,272,263.80/66,475.96
  6. Step 6: Final answer
    x = 49,766.45

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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.