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Finding the Third Proportional to 19,112.50 and 40,547

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Solution

The third proportional to 19,112.50 and 40,547 is: 86,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.50 : 40,547 = 40,547 : x
  2. Step 2: Convert to fraction form
    19,112.50/40,547 = 40,547/x
  3. Step 3: Cross multiply
    19,112.50x = 40,547 × 40,547
  4. Step 4: Simplify right side
    19,112.50x = 1,644,059,209
  5. Step 5: Solve for x
    x = 1,644,059,209/19,112.50
  6. Step 6: Final answer
    x = 86,020.10

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.