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Finding the Third Proportional to 21,386.53 and 44,128.13

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Solution

The third proportional to 21,386.53 and 44,128.13 is: 91,052.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.53 : 44,128.13 = 44,128.13 : x
  2. Step 2: Convert to fraction form
    21,386.53/44,128.13 = 44,128.13/x
  3. Step 3: Cross multiply
    21,386.53x = 44,128.13 × 44,128.13
  4. Step 4: Simplify right side
    21,386.53x = 1,947,291,416.02
  5. Step 5: Solve for x
    x = 1,947,291,416.02/21,386.53
  6. Step 6: Final answer
    x = 91,052.23

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.