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Finding the Fourth Proportional to 17,775.05, 26,646.09 and 6,689.09

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Solution

The fourth proportional to 17,775.05, 26,646.09 and 6,689.09 is: 10,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.05 : 26,646.09 = 6,689.09 : x
  2. Step 2: Convert to fraction form
    17,775.05/26,646.09 = 6,689.09/x
  3. Step 3: Cross multiply
    17,775.05x = 26,646.09 × 6,689.09
  4. Step 4: Simplify right side
    17,775.05x = 178,238,094.16
  5. Step 5: Solve for x
    x = 178,238,094.16/17,775.05
  6. Step 6: Final answer
    x = 10,027.43

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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.