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Finding the Fourth Proportional to 18,550.78, 25,634.02 and 13,506.24

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Solution

The fourth proportional to 18,550.78, 25,634.02 and 13,506.24 is: 18,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.78 : 25,634.02 = 13,506.24 : x
  2. Step 2: Convert to fraction form
    18,550.78/25,634.02 = 13,506.24/x
  3. Step 3: Cross multiply
    18,550.78x = 25,634.02 × 13,506.24
  4. Step 4: Simplify right side
    18,550.78x = 346,219,226.28
  5. Step 5: Solve for x
    x = 346,219,226.28/18,550.78
  6. Step 6: Final answer
    x = 18,663.33

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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.