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Finding the Fourth Proportional to 66,928.66, 92,359.94 and 36,713.70

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Solution

The fourth proportional to 66,928.66, 92,359.94 and 36,713.70 is: 50,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.66 : 92,359.94 = 36,713.70 : x
  2. Step 2: Convert to fraction form
    66,928.66/92,359.94 = 36,713.70/x
  3. Step 3: Cross multiply
    66,928.66x = 92,359.94 × 36,713.70
  4. Step 4: Simplify right side
    66,928.66x = 3,390,875,129.18
  5. Step 5: Solve for x
    x = 3,390,875,129.18/66,928.66
  6. Step 6: Final answer
    x = 50,664.02

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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.