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Finding the Fourth Proportional to 19,195.78, 26,489.73 and 10,697.89

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Solution

The fourth proportional to 19,195.78, 26,489.73 and 10,697.89 is: 14,762.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.78 : 26,489.73 = 10,697.89 : x
  2. Step 2: Convert to fraction form
    19,195.78/26,489.73 = 10,697.89/x
  3. Step 3: Cross multiply
    19,195.78x = 26,489.73 × 10,697.89
  4. Step 4: Simplify right side
    19,195.78x = 283,384,217.67
  5. Step 5: Solve for x
    x = 283,384,217.67/19,195.78
  6. Step 6: Final answer
    x = 14,762.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.