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Finding the Fourth Proportional to 63,015.25, 86,958.57 and 34,335.16

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Solution

The fourth proportional to 63,015.25, 86,958.57 and 34,335.16 is: 47,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015.25 : 86,958.57 = 34,335.16 : x
  2. Step 2: Convert to fraction form
    63,015.25/86,958.57 = 34,335.16/x
  3. Step 3: Cross multiply
    63,015.25x = 86,958.57 × 34,335.16
  4. Step 4: Simplify right side
    63,015.25x = 2,985,736,414.32
  5. Step 5: Solve for x
    x = 2,985,736,414.32/63,015.25
  6. Step 6: Final answer
    x = 47,381.17

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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.