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Finding the Fourth Proportional to 53,611.32, 73,972.92 and 32,390.64

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Solution

The fourth proportional to 53,611.32, 73,972.92 and 32,390.64 is: 44,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,611.32 : 73,972.92 = 32,390.64 : x
  2. Step 2: Convert to fraction form
    53,611.32/73,972.92 = 32,390.64/x
  3. Step 3: Cross multiply
    53,611.32x = 73,972.92 × 32,390.64
  4. Step 4: Simplify right side
    53,611.32x = 2,396,030,221.47
  5. Step 5: Solve for x
    x = 2,396,030,221.47/53,611.32
  6. Step 6: Final answer
    x = 44,692.62

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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.