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Finding the Fourth Proportional to 39,296.90, 58,892.78 and 19,275.78

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Solution

The fourth proportional to 39,296.90, 58,892.78 and 19,275.78 is: 28,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.90 : 58,892.78 = 19,275.78 : x
  2. Step 2: Convert to fraction form
    39,296.90/58,892.78 = 19,275.78/x
  3. Step 3: Cross multiply
    39,296.90x = 58,892.78 × 19,275.78
  4. Step 4: Simplify right side
    39,296.90x = 1,135,204,174.49
  5. Step 5: Solve for x
    x = 1,135,204,174.49/39,296.90
  6. Step 6: Final answer
    x = 28,887.88

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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.