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Finding the Fourth Proportional to 67,017.76, 92,516 and 38,717.98

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Solution

The fourth proportional to 67,017.76, 92,516 and 38,717.98 is: 53,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,017.76 : 92,516 = 38,717.98 : x
  2. Step 2: Convert to fraction form
    67,017.76/92,516 = 38,717.98/x
  3. Step 3: Cross multiply
    67,017.76x = 92,516 × 38,717.98
  4. Step 4: Simplify right side
    67,017.76x = 3,582,032,637.68
  5. Step 5: Solve for x
    x = 3,582,032,637.68/67,017.76
  6. Step 6: Final answer
    x = 53,449.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.