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Finding the Fourth Proportional to 19,620.30, 27,063.86 and 17,108.44

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Solution

The fourth proportional to 19,620.30, 27,063.86 and 17,108.44 is: 23,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.30 : 27,063.86 = 17,108.44 : x
  2. Step 2: Convert to fraction form
    19,620.30/27,063.86 = 17,108.44/x
  3. Step 3: Cross multiply
    19,620.30x = 27,063.86 × 17,108.44
  4. Step 4: Simplify right side
    19,620.30x = 463,020,424.98
  5. Step 5: Solve for x
    x = 463,020,424.98/19,620.30
  6. Step 6: Final answer
    x = 23,599.05

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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.