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Finding the Fourth Proportional to 61,378.54, 92,057.56 and 17,009.78

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Solution

The fourth proportional to 61,378.54, 92,057.56 and 17,009.78 is: 25,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,378.54 : 92,057.56 = 17,009.78 : x
  2. Step 2: Convert to fraction form
    61,378.54/92,057.56 = 17,009.78/x
  3. Step 3: Cross multiply
    61,378.54x = 92,057.56 × 17,009.78
  4. Step 4: Simplify right side
    61,378.54x = 1,565,878,953.63
  5. Step 5: Solve for x
    x = 1,565,878,953.63/61,378.54
  6. Step 6: Final answer
    x = 25,511.83

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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.