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Finding the Fourth Proportional to 67,320, 92,900.36 and 36,693.36

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Solution

The fourth proportional to 67,320, 92,900.36 and 36,693.36 is: 50,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,320 : 92,900.36 = 36,693.36 : x
  2. Step 2: Convert to fraction form
    67,320/92,900.36 = 36,693.36/x
  3. Step 3: Cross multiply
    67,320x = 92,900.36 × 36,693.36
  4. Step 4: Simplify right side
    67,320x = 3,408,826,353.61
  5. Step 5: Solve for x
    x = 3,408,826,353.61/67,320
  6. Step 6: Final answer
    x = 50,636.16

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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.