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Finding the Fourth Proportional to 17,957.31, 26,908.03 and 6,857.95

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Solution

The fourth proportional to 17,957.31, 26,908.03 and 6,857.95 is: 10,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.31 : 26,908.03 = 6,857.95 : x
  2. Step 2: Convert to fraction form
    17,957.31/26,908.03 = 6,857.95/x
  3. Step 3: Cross multiply
    17,957.31x = 26,908.03 × 6,857.95
  4. Step 4: Simplify right side
    17,957.31x = 184,533,924.34
  5. Step 5: Solve for x
    x = 184,533,924.34/17,957.31
  6. Step 6: Final answer
    x = 10,276.26

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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.