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Finding the Fourth Proportional to 17,738.88, 26,612.88 and 6,645.72

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Solution

The fourth proportional to 17,738.88, 26,612.88 and 6,645.72 is: 9,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,738.88 : 26,612.88 = 6,645.72 : x
  2. Step 2: Convert to fraction form
    17,738.88/26,612.88 = 6,645.72/x
  3. Step 3: Cross multiply
    17,738.88x = 26,612.88 × 6,645.72
  4. Step 4: Simplify right side
    17,738.88x = 176,861,748.87
  5. Step 5: Solve for x
    x = 176,861,748.87/17,738.88
  6. Step 6: Final answer
    x = 9,970.29

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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.