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Finding the Fourth Proportional to 62,871.50, 94,317.90 and 31,283.30

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Solution

The fourth proportional to 62,871.50, 94,317.90 and 31,283.30 is: 46,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.50 : 94,317.90 = 31,283.30 : x
  2. Step 2: Convert to fraction form
    62,871.50/94,317.90 = 31,283.30/x
  3. Step 3: Cross multiply
    62,871.50x = 94,317.90 × 31,283.30
  4. Step 4: Simplify right side
    62,871.50x = 2,950,575,161.07
  5. Step 5: Solve for x
    x = 2,950,575,161.07/62,871.50
  6. Step 6: Final answer
    x = 46,930.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.