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Finding the Fourth Proportional to 63,018.48, 86,965.14 and 34,338.06

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Solution

The fourth proportional to 63,018.48, 86,965.14 and 34,338.06 is: 47,386.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018.48 : 86,965.14 = 34,338.06 : x
  2. Step 2: Convert to fraction form
    63,018.48/86,965.14 = 34,338.06/x
  3. Step 3: Cross multiply
    63,018.48x = 86,965.14 × 34,338.06
  4. Step 4: Simplify right side
    63,018.48x = 2,986,214,195.23
  5. Step 5: Solve for x
    x = 2,986,214,195.23/63,018.48
  6. Step 6: Final answer
    x = 47,386.33

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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.