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Finding the Fourth Proportional to 63,019.66, 86,966.60 and 34,725.16

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Solution

The fourth proportional to 63,019.66, 86,966.60 and 34,725.16 is: 47,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,019.66 : 86,966.60 = 34,725.16 : x
  2. Step 2: Convert to fraction form
    63,019.66/86,966.60 = 34,725.16/x
  3. Step 3: Cross multiply
    63,019.66x = 86,966.60 × 34,725.16
  4. Step 4: Simplify right side
    63,019.66x = 3,019,929,099.66
  5. Step 5: Solve for x
    x = 3,019,929,099.66/63,019.66
  6. Step 6: Final answer
    x = 47,920.43

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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.