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Finding the Fourth Proportional to 18,417.87, 27,634.14 and 6,739.29

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Solution

The fourth proportional to 18,417.87, 27,634.14 and 6,739.29 is: 10,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.87 : 27,634.14 = 6,739.29 : x
  2. Step 2: Convert to fraction form
    18,417.87/27,634.14 = 6,739.29/x
  3. Step 3: Cross multiply
    18,417.87x = 27,634.14 × 6,739.29
  4. Step 4: Simplify right side
    18,417.87x = 186,234,483.36
  5. Step 5: Solve for x
    x = 186,234,483.36/18,417.87
  6. Step 6: Final answer
    x = 10,111.62

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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.