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Finding the Third Proportional to 1,639,743.75 and 3,602,316.38

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Solution

The third proportional to 1,639,743.75 and 3,602,316.38 is: 7,913,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,743.75 : 3,602,316.38 = 3,602,316.38 : x
  2. Step 2: Convert to fraction form
    1,639,743.75/3,602,316.38 = 3,602,316.38/x
  3. Step 3: Cross multiply
    1,639,743.75x = 3,602,316.38 × 3,602,316.38
  4. Step 4: Simplify right side
    1,639,743.75x = 12,976,683,265,593.14
  5. Step 5: Solve for x
    x = 12,976,683,265,593.14/1,639,743.75
  6. Step 6: Final answer
    x = 7,913,848.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.