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Finding the Third Proportional to 1,553,676,438 and 3,328,963,458

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Solution

The third proportional to 1,553,676,438 and 3,328,963,458 is: 7,132,757,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,676,438 : 3,328,963,458 = 3,328,963,458 : x
  2. Step 2: Convert to fraction form
    1,553,676,438/3,328,963,458 = 3,328,963,458/x
  3. Step 3: Cross multiply
    1,553,676,438x = 3,328,963,458 × 3,328,963,458
  4. Step 4: Simplify right side
    1,553,676,438x = 11,081,997,704,699,318,272
  5. Step 5: Solve for x
    x = 11,081,997,704,699,318,272/1,553,676,438
  6. Step 6: Final answer
    x = 7,132,757,782.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.