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Finding the Fourth Proportional to 34,788.39, 48,004.70 and 19,679.19

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Solution

The fourth proportional to 34,788.39, 48,004.70 and 19,679.19 is: 27,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788.39 : 48,004.70 = 19,679.19 : x
  2. Step 2: Convert to fraction form
    34,788.39/48,004.70 = 19,679.19/x
  3. Step 3: Cross multiply
    34,788.39x = 48,004.70 × 19,679.19
  4. Step 4: Simplify right side
    34,788.39x = 944,693,513.80
  5. Step 5: Solve for x
    x = 944,693,513.80/34,788.39
  6. Step 6: Final answer
    x = 27,155.42

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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.