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Finding the Fourth Proportional to 18,702.36, 25,809.71 and 10,744.38

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Solution

The fourth proportional to 18,702.36, 25,809.71 and 10,744.38 is: 14,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.36 : 25,809.71 = 10,744.38 : x
  2. Step 2: Convert to fraction form
    18,702.36/25,809.71 = 10,744.38/x
  3. Step 3: Cross multiply
    18,702.36x = 25,809.71 × 10,744.38
  4. Step 4: Simplify right side
    18,702.36x = 277,309,278.21
  5. Step 5: Solve for x
    x = 277,309,278.21/18,702.36
  6. Step 6: Final answer
    x = 14,827.50

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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.