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Finding the Fourth Proportional to 17,298.34, 25,946.29 and 9,879.55

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Solution

The fourth proportional to 17,298.34, 25,946.29 and 9,879.55 is: 14,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,298.34 : 25,946.29 = 9,879.55 : x
  2. Step 2: Convert to fraction form
    17,298.34/25,946.29 = 9,879.55/x
  3. Step 3: Cross multiply
    17,298.34x = 25,946.29 × 9,879.55
  4. Step 4: Simplify right side
    17,298.34x = 256,337,669.37
  5. Step 5: Solve for x
    x = 256,337,669.37/17,298.34
  6. Step 6: Final answer
    x = 14,818.63

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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.