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Finding the Fourth Proportional to 23,003.80, 34,513.80 and 11,309.20

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Solution

The fourth proportional to 23,003.80, 34,513.80 and 11,309.20 is: 16,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,003.80 : 34,513.80 = 11,309.20 : x
  2. Step 2: Convert to fraction form
    23,003.80/34,513.80 = 11,309.20/x
  3. Step 3: Cross multiply
    23,003.80x = 34,513.80 × 11,309.20
  4. Step 4: Simplify right side
    23,003.80x = 390,323,466.96
  5. Step 5: Solve for x
    x = 390,323,466.96/23,003.80
  6. Step 6: Final answer
    x = 16,967.78

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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.