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Finding the Fourth Proportional to 18,903.63, 26,083.80 and 10,944.48

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Solution

The fourth proportional to 18,903.63, 26,083.80 and 10,944.48 is: 15,101.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.63 : 26,083.80 = 10,944.48 : x
  2. Step 2: Convert to fraction form
    18,903.63/26,083.80 = 10,944.48/x
  3. Step 3: Cross multiply
    18,903.63x = 26,083.80 × 10,944.48
  4. Step 4: Simplify right side
    18,903.63x = 285,473,627.42
  5. Step 5: Solve for x
    x = 285,473,627.42/18,903.63
  6. Step 6: Final answer
    x = 15,101.52

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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.