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Finding the Third Proportional to 7,042.50 and 15,259.50

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Solution

The third proportional to 7,042.50 and 15,259.50 is: 33,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.50 : 15,259.50 = 15,259.50 : x
  2. Step 2: Convert to fraction form
    7,042.50/15,259.50 = 15,259.50/x
  3. Step 3: Cross multiply
    7,042.50x = 15,259.50 × 15,259.50
  4. Step 4: Simplify right side
    7,042.50x = 232,852,340.25
  5. Step 5: Solve for x
    x = 232,852,340.25/7,042.50
  6. Step 6: Final answer
    x = 33,063.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.