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Finding the Fourth Proportional to 17,214.88, 25,820.16 and 8,892.40

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Solution

The fourth proportional to 17,214.88, 25,820.16 and 8,892.40 is: 13,337.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,214.88 : 25,820.16 = 8,892.40 : x
  2. Step 2: Convert to fraction form
    17,214.88/25,820.16 = 8,892.40/x
  3. Step 3: Cross multiply
    17,214.88x = 25,820.16 × 8,892.40
  4. Step 4: Simplify right side
    17,214.88x = 229,603,190.78
  5. Step 5: Solve for x
    x = 229,603,190.78/17,214.88
  6. Step 6: Final answer
    x = 13,337.48

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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.