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Finding the Third Proportional to 15,643.13 and 34,521.19

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Solution

The third proportional to 15,643.13 and 34,521.19 is: 76,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.13 : 34,521.19 = 34,521.19 : x
  2. Step 2: Convert to fraction form
    15,643.13/34,521.19 = 34,521.19/x
  3. Step 3: Cross multiply
    15,643.13x = 34,521.19 × 34,521.19
  4. Step 4: Simplify right side
    15,643.13x = 1,191,712,386.41
  5. Step 5: Solve for x
    x = 1,191,712,386.41/15,643.13
  6. Step 6: Final answer
    x = 76,181.22

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.