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Finding the Fourth Proportional to 69,700.56, 96,186.99 and 39,491.47

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Solution

The fourth proportional to 69,700.56, 96,186.99 and 39,491.47 is: 54,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,700.56 : 96,186.99 = 39,491.47 : x
  2. Step 2: Convert to fraction form
    69,700.56/96,186.99 = 39,491.47/x
  3. Step 3: Cross multiply
    69,700.56x = 96,186.99 × 39,491.47
  4. Step 4: Simplify right side
    69,700.56x = 3,798,565,629.98
  5. Step 5: Solve for x
    x = 3,798,565,629.98/69,700.56
  6. Step 6: Final answer
    x = 54,498.35

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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.