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Finding the Fourth Proportional to 63,028.32, 86,979.10 and 34,347.99

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Solution

The fourth proportional to 63,028.32, 86,979.10 and 34,347.99 is: 47,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,028.32 : 86,979.10 = 34,347.99 : x
  2. Step 2: Convert to fraction form
    63,028.32/86,979.10 = 34,347.99/x
  3. Step 3: Cross multiply
    63,028.32x = 86,979.10 × 34,347.99
  4. Step 4: Simplify right side
    63,028.32x = 2,987,557,381.49
  5. Step 5: Solve for x
    x = 2,987,557,381.49/63,028.32
  6. Step 6: Final answer
    x = 47,400.24

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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.