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Finding the Fourth Proportional to 18,702.30, 25,810.02 and 10,747.02

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Solution

The fourth proportional to 18,702.30, 25,810.02 and 10,747.02 is: 14,831.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.30 : 25,810.02 = 10,747.02 : x
  2. Step 2: Convert to fraction form
    18,702.30/25,810.02 = 10,747.02/x
  3. Step 3: Cross multiply
    18,702.30x = 25,810.02 × 10,747.02
  4. Step 4: Simplify right side
    18,702.30x = 277,380,801.14
  5. Step 5: Solve for x
    x = 277,380,801.14/18,702.30
  6. Step 6: Final answer
    x = 14,831.37

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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.