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Finding the Fourth Proportional to 17,159.96, 25,694.84 and 13,810.40

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Solution

The fourth proportional to 17,159.96, 25,694.84 and 13,810.40 is: 20,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,159.96 : 25,694.84 = 13,810.40 : x
  2. Step 2: Convert to fraction form
    17,159.96/25,694.84 = 13,810.40/x
  3. Step 3: Cross multiply
    17,159.96x = 25,694.84 × 13,810.40
  4. Step 4: Simplify right side
    17,159.96x = 354,856,018.34
  5. Step 5: Solve for x
    x = 354,856,018.34/17,159.96
  6. Step 6: Final answer
    x = 20,679.30

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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.