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Finding the Third Proportional to 7,801.31 and 12,047.91

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Solution

The third proportional to 7,801.31 and 12,047.91 is: 18,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.31 : 12,047.91 = 12,047.91 : x
  2. Step 2: Convert to fraction form
    7,801.31/12,047.91 = 12,047.91/x
  3. Step 3: Cross multiply
    7,801.31x = 12,047.91 × 12,047.91
  4. Step 4: Simplify right side
    7,801.31x = 145,152,045.01
  5. Step 5: Solve for x
    x = 145,152,045.01/7,801.31
  6. Step 6: Final answer
    x = 18,606.11

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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.