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Finding the Fourth Proportional to 66,141.96, 91,276.90 and 35,927.88

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Solution

The fourth proportional to 66,141.96, 91,276.90 and 35,927.88 is: 49,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.96 : 91,276.90 = 35,927.88 : x
  2. Step 2: Convert to fraction form
    66,141.96/91,276.90 = 35,927.88/x
  3. Step 3: Cross multiply
    66,141.96x = 91,276.90 × 35,927.88
  4. Step 4: Simplify right side
    66,141.96x = 3,279,385,509.97
  5. Step 5: Solve for x
    x = 3,279,385,509.97/66,141.96
  6. Step 6: Final answer
    x = 49,581.01

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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.