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Finding the Fourth Proportional to 66,376.56, 91,598.40 and 36,162.48

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Solution

The fourth proportional to 66,376.56, 91,598.40 and 36,162.48 is: 49,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.56 : 91,598.40 = 36,162.48 : x
  2. Step 2: Convert to fraction form
    66,376.56/91,598.40 = 36,162.48/x
  3. Step 3: Cross multiply
    66,376.56x = 91,598.40 × 36,162.48
  4. Step 4: Simplify right side
    66,376.56x = 3,312,425,308.03
  5. Step 5: Solve for x
    x = 3,312,425,308.03/66,376.56
  6. Step 6: Final answer
    x = 49,903.54

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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.