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Finding the Fourth Proportional to 13,610.57, 18,776.07 and 8,830.08

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Solution

The fourth proportional to 13,610.57, 18,776.07 and 8,830.08 is: 12,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.57 : 18,776.07 = 8,830.08 : x
  2. Step 2: Convert to fraction form
    13,610.57/18,776.07 = 8,830.08/x
  3. Step 3: Cross multiply
    13,610.57x = 18,776.07 × 8,830.08
  4. Step 4: Simplify right side
    13,610.57x = 165,794,200.19
  5. Step 5: Solve for x
    x = 165,794,200.19/13,610.57
  6. Step 6: Final answer
    x = 12,181.29

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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.