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Finding the Fourth Proportional to 63,014.40, 86,958.90 and 34,721.10

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Solution

The fourth proportional to 63,014.40, 86,958.90 and 34,721.10 is: 47,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,014.40 : 86,958.90 = 34,721.10 : x
  2. Step 2: Convert to fraction form
    63,014.40/86,958.90 = 34,721.10/x
  3. Step 3: Cross multiply
    63,014.40x = 86,958.90 × 34,721.10
  4. Step 4: Simplify right side
    63,014.40x = 3,019,308,662.79
  5. Step 5: Solve for x
    x = 3,019,308,662.79/63,014.40
  6. Step 6: Final answer
    x = 47,914.58

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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.