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Finding the Fourth Proportional to 17,590.78, 26,390.12 and 5,903.70

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Solution

The fourth proportional to 17,590.78, 26,390.12 and 5,903.70 is: 8,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,590.78 : 26,390.12 = 5,903.70 : x
  2. Step 2: Convert to fraction form
    17,590.78/26,390.12 = 5,903.70/x
  3. Step 3: Cross multiply
    17,590.78x = 26,390.12 × 5,903.70
  4. Step 4: Simplify right side
    17,590.78x = 155,799,351.44
  5. Step 5: Solve for x
    x = 155,799,351.44/17,590.78
  6. Step 6: Final answer
    x = 8,856.88

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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.