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Finding the Fourth Proportional to 18,659.52, 25,750.14 and 10,276.02

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Solution

The fourth proportional to 18,659.52, 25,750.14 and 10,276.02 is: 14,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.52 : 25,750.14 = 10,276.02 : x
  2. Step 2: Convert to fraction form
    18,659.52/25,750.14 = 10,276.02/x
  3. Step 3: Cross multiply
    18,659.52x = 25,750.14 × 10,276.02
  4. Step 4: Simplify right side
    18,659.52x = 264,608,953.64
  5. Step 5: Solve for x
    x = 264,608,953.64/18,659.52
  6. Step 6: Final answer
    x = 14,180.91

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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.