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Finding the Third Proportional to 39,891,948 and 87,350,646

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Solution

The third proportional to 39,891,948 and 87,350,646 is: 191,270,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,891,948 : 87,350,646 = 87,350,646 : x
  2. Step 2: Convert to fraction form
    39,891,948/87,350,646 = 87,350,646/x
  3. Step 3: Cross multiply
    39,891,948x = 87,350,646 × 87,350,646
  4. Step 4: Simplify right side
    39,891,948x = 7,630,135,356,617,316
  5. Step 5: Solve for x
    x = 7,630,135,356,617,316/39,891,948
  6. Step 6: Final answer
    x = 191,270,061.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.