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Finding the Fourth Proportional to 39,260.16, 58,891.86 and 12,964.86

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Solution

The fourth proportional to 39,260.16, 58,891.86 and 12,964.86 is: 19,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.16 : 58,891.86 = 12,964.86 : x
  2. Step 2: Convert to fraction form
    39,260.16/58,891.86 = 12,964.86/x
  3. Step 3: Cross multiply
    39,260.16x = 58,891.86 × 12,964.86
  4. Step 4: Simplify right side
    39,260.16x = 763,524,720.04
  5. Step 5: Solve for x
    x = 763,524,720.04/39,260.16
  6. Step 6: Final answer
    x = 19,447.82

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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.