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Finding the Fourth Proportional to 47,762.97, 71,644.37 and 12,702.62

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Solution

The fourth proportional to 47,762.97, 71,644.37 and 12,702.62 is: 19,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,762.97 : 71,644.37 = 12,702.62 : x
  2. Step 2: Convert to fraction form
    47,762.97/71,644.37 = 12,702.62/x
  3. Step 3: Cross multiply
    47,762.97x = 71,644.37 × 12,702.62
  4. Step 4: Simplify right side
    47,762.97x = 910,071,430.03
  5. Step 5: Solve for x
    x = 910,071,430.03/47,762.97
  6. Step 6: Final answer
    x = 19,053.91

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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.