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Finding the Fourth Proportional to 17,812.78, 24,581.74 and 9,855.30

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Solution

The fourth proportional to 17,812.78, 24,581.74 and 9,855.30 is: 13,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.78 : 24,581.74 = 9,855.30 : x
  2. Step 2: Convert to fraction form
    17,812.78/24,581.74 = 9,855.30/x
  3. Step 3: Cross multiply
    17,812.78x = 24,581.74 × 9,855.30
  4. Step 4: Simplify right side
    17,812.78x = 242,260,422.22
  5. Step 5: Solve for x
    x = 242,260,422.22/17,812.78
  6. Step 6: Final answer
    x = 13,600.37

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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.