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Finding the Fourth Proportional to 63,023.74, 86,971.64 and 34,343.65

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Solution

The fourth proportional to 63,023.74, 86,971.64 and 34,343.65 is: 47,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,023.74 : 86,971.64 = 34,343.65 : x
  2. Step 2: Convert to fraction form
    63,023.74/86,971.64 = 34,343.65/x
  3. Step 3: Cross multiply
    63,023.74x = 86,971.64 × 34,343.65
  4. Step 4: Simplify right side
    63,023.74x = 2,986,923,564.09
  5. Step 5: Solve for x
    x = 2,986,923,564.09/63,023.74
  6. Step 6: Final answer
    x = 47,393.63

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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.