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Finding the Fourth Proportional to 18,364.97, 27,539.25 and 5,214.26

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Solution

The fourth proportional to 18,364.97, 27,539.25 and 5,214.26 is: 7,819.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.97 : 27,539.25 = 5,214.26 : x
  2. Step 2: Convert to fraction form
    18,364.97/27,539.25 = 5,214.26/x
  3. Step 3: Cross multiply
    18,364.97x = 27,539.25 × 5,214.26
  4. Step 4: Simplify right side
    18,364.97x = 143,596,809.71
  5. Step 5: Solve for x
    x = 143,596,809.71/18,364.97
  6. Step 6: Final answer
    x = 7,819.06

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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.