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Finding the Fourth Proportional to 47,702.50, 71,553.75 and 14,870.50

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Solution

The fourth proportional to 47,702.50, 71,553.75 and 14,870.50 is: 22,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,702.50 : 71,553.75 = 14,870.50 : x
  2. Step 2: Convert to fraction form
    47,702.50/71,553.75 = 14,870.50/x
  3. Step 3: Cross multiply
    47,702.50x = 71,553.75 × 14,870.50
  4. Step 4: Simplify right side
    47,702.50x = 1,064,040,039.38
  5. Step 5: Solve for x
    x = 1,064,040,039.38/47,702.50
  6. Step 6: Final answer
    x = 22,305.75

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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.