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Finding the Fourth Proportional to 17,913.03, 26,859.09 and 6,820.48

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Solution

The fourth proportional to 17,913.03, 26,859.09 and 6,820.48 is: 10,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.03 : 26,859.09 = 6,820.48 : x
  2. Step 2: Convert to fraction form
    17,913.03/26,859.09 = 6,820.48/x
  3. Step 3: Cross multiply
    17,913.03x = 26,859.09 × 6,820.48
  4. Step 4: Simplify right side
    17,913.03x = 183,191,886.16
  5. Step 5: Solve for x
    x = 183,191,886.16/17,913.03
  6. Step 6: Final answer
    x = 10,226.74

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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.