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Finding the Fourth Proportional to 69,764.64, 104,655.96 and 25,384.56

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Solution

The fourth proportional to 69,764.64, 104,655.96 and 25,384.56 is: 38,080.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,764.64 : 104,655.96 = 25,384.56 : x
  2. Step 2: Convert to fraction form
    69,764.64/104,655.96 = 25,384.56/x
  3. Step 3: Cross multiply
    69,764.64x = 104,655.96 × 25,384.56
  4. Step 4: Simplify right side
    69,764.64x = 2,656,645,495.98
  5. Step 5: Solve for x
    x = 2,656,645,495.98/69,764.64
  6. Step 6: Final answer
    x = 38,080.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.