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Finding the Fourth Proportional to 18,602.69, 27,901.36 and 6,123.21

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Solution

The fourth proportional to 18,602.69, 27,901.36 and 6,123.21 is: 9,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.69 : 27,901.36 = 6,123.21 : x
  2. Step 2: Convert to fraction form
    18,602.69/27,901.36 = 6,123.21/x
  3. Step 3: Cross multiply
    18,602.69x = 27,901.36 × 6,123.21
  4. Step 4: Simplify right side
    18,602.69x = 170,845,886.57
  5. Step 5: Solve for x
    x = 170,845,886.57/18,602.69
  6. Step 6: Final answer
    x = 9,183.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.