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Finding the Fourth Proportional to 17,793.45, 26,718.98 and 12,897.45

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Solution

The fourth proportional to 17,793.45, 26,718.98 and 12,897.45 is: 19,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.45 : 26,718.98 = 12,897.45 : x
  2. Step 2: Convert to fraction form
    17,793.45/26,718.98 = 12,897.45/x
  3. Step 3: Cross multiply
    17,793.45x = 26,718.98 × 12,897.45
  4. Step 4: Simplify right side
    17,793.45x = 344,606,644.11
  5. Step 5: Solve for x
    x = 344,606,644.11/17,793.45
  6. Step 6: Final answer
    x = 19,367.05

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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.