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Finding the Fourth Proportional to 37,685.88, 52,007.94 and 20,922.12

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Solution

The fourth proportional to 37,685.88, 52,007.94 and 20,922.12 is: 28,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,685.88 : 52,007.94 = 20,922.12 : x
  2. Step 2: Convert to fraction form
    37,685.88/52,007.94 = 20,922.12/x
  3. Step 3: Cross multiply
    37,685.88x = 52,007.94 × 20,922.12
  4. Step 4: Simplify right side
    37,685.88x = 1,088,116,361.63
  5. Step 5: Solve for x
    x = 1,088,116,361.63/37,685.88
  6. Step 6: Final answer
    x = 28,873.32

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Double scale
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Similar ratio
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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.