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Finding the Fourth Proportional to 37,216, 51,358.08 and 20,449.12

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Solution

The fourth proportional to 37,216, 51,358.08 and 20,449.12 is: 28,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,216 : 51,358.08 = 20,449.12 : x
  2. Step 2: Convert to fraction form
    37,216/51,358.08 = 20,449.12/x
  3. Step 3: Cross multiply
    37,216x = 51,358.08 × 20,449.12
  4. Step 4: Simplify right side
    37,216x = 1,050,227,540.89
  5. Step 5: Solve for x
    x = 1,050,227,540.89/37,216
  6. Step 6: Final answer
    x = 28,219.79

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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.