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Finding the Third Proportional to 15,005.25 and 23,312.81

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Solution

The third proportional to 15,005.25 and 23,312.81 is: 36,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.25 : 23,312.81 = 23,312.81 : x
  2. Step 2: Convert to fraction form
    15,005.25/23,312.81 = 23,312.81/x
  3. Step 3: Cross multiply
    15,005.25x = 23,312.81 × 23,312.81
  4. Step 4: Simplify right side
    15,005.25x = 543,487,226.66
  5. Step 5: Solve for x
    x = 543,487,226.66/15,005.25
  6. Step 6: Final answer
    x = 36,219.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.