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Finding the Fourth Proportional to 17,363.12, 23,961.08 and 9,405.28

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Solution

The fourth proportional to 17,363.12, 23,961.08 and 9,405.28 is: 12,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,363.12 : 23,961.08 = 9,405.28 : x
  2. Step 2: Convert to fraction form
    17,363.12/23,961.08 = 9,405.28/x
  3. Step 3: Cross multiply
    17,363.12x = 23,961.08 × 9,405.28
  4. Step 4: Simplify right side
    17,363.12x = 225,360,666.50
  5. Step 5: Solve for x
    x = 225,360,666.50/17,363.12
  6. Step 6: Final answer
    x = 12,979.27

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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.