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Finding the Fourth Proportional to 64,964.69, 97,447.03 and 15,716.69

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Solution

The fourth proportional to 64,964.69, 97,447.03 and 15,716.69 is: 23,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,964.69 : 97,447.03 = 15,716.69 : x
  2. Step 2: Convert to fraction form
    64,964.69/97,447.03 = 15,716.69/x
  3. Step 3: Cross multiply
    64,964.69x = 97,447.03 × 15,716.69
  4. Step 4: Simplify right side
    64,964.69x = 1,531,544,761.93
  5. Step 5: Solve for x
    x = 1,531,544,761.93/64,964.69
  6. Step 6: Final answer
    x = 23,575.03

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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.