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Finding the Third Proportional to 15,956,780 and 35,272,792

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Solution

The third proportional to 15,956,780 and 35,272,792 is: 77,971,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956,780 : 35,272,792 = 35,272,792 : x
  2. Step 2: Convert to fraction form
    15,956,780/35,272,792 = 35,272,792/x
  3. Step 3: Cross multiply
    15,956,780x = 35,272,792 × 35,272,792
  4. Step 4: Simplify right side
    15,956,780x = 1,244,169,855,475,264
  5. Step 5: Solve for x
    x = 1,244,169,855,475,264/15,956,780
  6. Step 6: Final answer
    x = 77,971,235.77

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.