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Finding the Fourth Proportional to 18,202.71, 25,127.49 and 12,237.84

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Solution

The fourth proportional to 18,202.71, 25,127.49 and 12,237.84 is: 16,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,202.71 : 25,127.49 = 12,237.84 : x
  2. Step 2: Convert to fraction form
    18,202.71/25,127.49 = 12,237.84/x
  3. Step 3: Cross multiply
    18,202.71x = 25,127.49 × 12,237.84
  4. Step 4: Simplify right side
    18,202.71x = 307,506,202.22
  5. Step 5: Solve for x
    x = 307,506,202.22/18,202.71
  6. Step 6: Final answer
    x = 16,893.43

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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.