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Finding the Fourth Proportional to 63,042.98, 86,998.12 and 34,362.90

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Solution

The fourth proportional to 63,042.98, 86,998.12 and 34,362.90 is: 47,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,042.98 : 86,998.12 = 34,362.90 : x
  2. Step 2: Convert to fraction form
    63,042.98/86,998.12 = 34,362.90/x
  3. Step 3: Cross multiply
    63,042.98x = 86,998.12 × 34,362.90
  4. Step 4: Simplify right side
    63,042.98x = 2,989,507,611.84
  5. Step 5: Solve for x
    x = 2,989,507,611.84/63,042.98
  6. Step 6: Final answer
    x = 47,420.15

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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.