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Finding the Fourth Proportional to 18,659.72, 25,750.38 and 10,276.22

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Solution

The fourth proportional to 18,659.72, 25,750.38 and 10,276.22 is: 14,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.72 : 25,750.38 = 10,276.22 : x
  2. Step 2: Convert to fraction form
    18,659.72/25,750.38 = 10,276.22/x
  3. Step 3: Cross multiply
    18,659.72x = 25,750.38 × 10,276.22
  4. Step 4: Simplify right side
    18,659.72x = 264,616,569.96
  5. Step 5: Solve for x
    x = 264,616,569.96/18,659.72
  6. Step 6: Final answer
    x = 14,181.17

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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.