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Finding the Fourth Proportional to 14,702.20, 22,020.90 and 13,060.60

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Solution

The fourth proportional to 14,702.20, 22,020.90 and 13,060.60 is: 19,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.20 : 22,020.90 = 13,060.60 : x
  2. Step 2: Convert to fraction form
    14,702.20/22,020.90 = 13,060.60/x
  3. Step 3: Cross multiply
    14,702.20x = 22,020.90 × 13,060.60
  4. Step 4: Simplify right side
    14,702.20x = 287,606,166.54
  5. Step 5: Solve for x
    x = 287,606,166.54/14,702.20
  6. Step 6: Final answer
    x = 19,562.12

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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.