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Finding the Fourth Proportional to 18,976, 26,188.16 and 10,592.68

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Solution

The fourth proportional to 18,976, 26,188.16 and 10,592.68 is: 14,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976 : 26,188.16 = 10,592.68 : x
  2. Step 2: Convert to fraction form
    18,976/26,188.16 = 10,592.68/x
  3. Step 3: Cross multiply
    18,976x = 26,188.16 × 10,592.68
  4. Step 4: Simplify right side
    18,976x = 277,402,798.67
  5. Step 5: Solve for x
    x = 277,402,798.67/18,976
  6. Step 6: Final answer
    x = 14,618.61

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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.