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Finding the Fourth Proportional to 82,469.36, 123,712.68 and 26,313.68

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Solution

The fourth proportional to 82,469.36, 123,712.68 and 26,313.68 is: 39,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,469.36 : 123,712.68 = 26,313.68 : x
  2. Step 2: Convert to fraction form
    82,469.36/123,712.68 = 26,313.68/x
  3. Step 3: Cross multiply
    82,469.36x = 123,712.68 × 26,313.68
  4. Step 4: Simplify right side
    82,469.36x = 3,255,335,873.46
  5. Step 5: Solve for x
    x = 3,255,335,873.46/82,469.36
  6. Step 6: Final answer
    x = 39,473.28

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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.