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Finding the Fourth Proportional to 62,973.11, 86,903.48 and 34,679

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Solution

The fourth proportional to 62,973.11, 86,903.48 and 34,679 is: 47,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,973.11 : 86,903.48 = 34,679 : x
  2. Step 2: Convert to fraction form
    62,973.11/86,903.48 = 34,679/x
  3. Step 3: Cross multiply
    62,973.11x = 86,903.48 × 34,679
  4. Step 4: Simplify right side
    62,973.11x = 3,013,725,782.92
  5. Step 5: Solve for x
    x = 3,013,725,782.92/62,973.11
  6. Step 6: Final answer
    x = 47,857.34

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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.