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Finding the Fourth Proportional to 61,132, 91,713.36 and 17,356

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Solution

The fourth proportional to 61,132, 91,713.36 and 17,356 is: 26,038.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,132 : 91,713.36 = 17,356 : x
  2. Step 2: Convert to fraction form
    61,132/91,713.36 = 17,356/x
  3. Step 3: Cross multiply
    61,132x = 91,713.36 × 17,356
  4. Step 4: Simplify right side
    61,132x = 1,591,777,076.16
  5. Step 5: Solve for x
    x = 1,591,777,076.16/61,132
  6. Step 6: Final answer
    x = 26,038.36

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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.