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Finding the Fourth Proportional to 18,305.58, 25,265.03 and 10,347.79

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Solution

The fourth proportional to 18,305.58, 25,265.03 and 10,347.79 is: 14,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.58 : 25,265.03 = 10,347.79 : x
  2. Step 2: Convert to fraction form
    18,305.58/25,265.03 = 10,347.79/x
  3. Step 3: Cross multiply
    18,305.58x = 25,265.03 × 10,347.79
  4. Step 4: Simplify right side
    18,305.58x = 261,437,224.78
  5. Step 5: Solve for x
    x = 261,437,224.78/18,305.58
  6. Step 6: Final answer
    x = 14,281.83

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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.