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Finding the Fourth Proportional to 17,898.80, 26,856.78 and 7,376.48

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Solution

The fourth proportional to 17,898.80, 26,856.78 and 7,376.48 is: 11,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.80 : 26,856.78 = 7,376.48 : x
  2. Step 2: Convert to fraction form
    17,898.80/26,856.78 = 7,376.48/x
  3. Step 3: Cross multiply
    17,898.80x = 26,856.78 × 7,376.48
  4. Step 4: Simplify right side
    17,898.80x = 198,108,500.53
  5. Step 5: Solve for x
    x = 198,108,500.53/17,898.80
  6. Step 6: Final answer
    x = 11,068.26

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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.