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Finding the Fourth Proportional to 57,402.17, 86,090.95 and 17,954.16

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Solution

The fourth proportional to 57,402.17, 86,090.95 and 17,954.16 is: 26,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,402.17 : 86,090.95 = 17,954.16 : x
  2. Step 2: Convert to fraction form
    57,402.17/86,090.95 = 17,954.16/x
  3. Step 3: Cross multiply
    57,402.17x = 86,090.95 × 17,954.16
  4. Step 4: Simplify right side
    57,402.17x = 1,545,690,390.45
  5. Step 5: Solve for x
    x = 1,545,690,390.45/57,402.17
  6. Step 6: Final answer
    x = 26,927.39

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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.