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Finding the Fourth Proportional to 18,495.90, 27,746.56 and 6,808.14

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Solution

The fourth proportional to 18,495.90, 27,746.56 and 6,808.14 is: 10,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.90 : 27,746.56 = 6,808.14 : x
  2. Step 2: Convert to fraction form
    18,495.90/27,746.56 = 6,808.14/x
  3. Step 3: Cross multiply
    18,495.90x = 27,746.56 × 6,808.14
  4. Step 4: Simplify right side
    18,495.90x = 188,902,465.00
  5. Step 5: Solve for x
    x = 188,902,465.00/18,495.90
  6. Step 6: Final answer
    x = 10,213.21

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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.