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Finding the Fourth Proportional to 67,152, 92,671.80 and 36,935.76

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Solution

The fourth proportional to 67,152, 92,671.80 and 36,935.76 is: 50,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,152 : 92,671.80 = 36,935.76 : x
  2. Step 2: Convert to fraction form
    67,152/92,671.80 = 36,935.76/x
  3. Step 3: Cross multiply
    67,152x = 92,671.80 × 36,935.76
  4. Step 4: Simplify right side
    67,152x = 3,422,903,363.57
  5. Step 5: Solve for x
    x = 3,422,903,363.57/67,152
  6. Step 6: Final answer
    x = 50,972.47

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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.