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Finding the Fourth Proportional to 37,225, 51,371.94 and 20,457.64

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Solution

The fourth proportional to 37,225, 51,371.94 and 20,457.64 is: 28,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,225 : 51,371.94 = 20,457.64 : x
  2. Step 2: Convert to fraction form
    37,225/51,371.94 = 20,457.64/x
  3. Step 3: Cross multiply
    37,225x = 51,371.94 × 20,457.64
  4. Step 4: Simplify right side
    37,225x = 1,050,948,654.62
  5. Step 5: Solve for x
    x = 1,050,948,654.62/37,225
  6. Step 6: Final answer
    x = 28,232.33

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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.