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Finding the Third Proportional to 39,478,708 and 58,889,478

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Solution

The third proportional to 39,478,708 and 58,889,478 is: 87,844,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478,708 : 58,889,478 = 58,889,478 : x
  2. Step 2: Convert to fraction form
    39,478,708/58,889,478 = 58,889,478/x
  3. Step 3: Cross multiply
    39,478,708x = 58,889,478 × 58,889,478
  4. Step 4: Simplify right side
    39,478,708x = 3,467,970,619,112,484
  5. Step 5: Solve for x
    x = 3,467,970,619,112,484/39,478,708
  6. Step 6: Final answer
    x = 87,844,075.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.