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Finding the Fourth Proportional to 66,750.90, 92,112.72 and 36,530.34

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Solution

The fourth proportional to 66,750.90, 92,112.72 and 36,530.34 is: 50,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750.90 : 92,112.72 = 36,530.34 : x
  2. Step 2: Convert to fraction form
    66,750.90/92,112.72 = 36,530.34/x
  3. Step 3: Cross multiply
    66,750.90x = 92,112.72 × 36,530.34
  4. Step 4: Simplify right side
    66,750.90x = 3,364,908,979.92
  5. Step 5: Solve for x
    x = 3,364,908,979.92/66,750.90
  6. Step 6: Final answer
    x = 50,409.94

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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.