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Finding the Third Proportional to 1,255,138,423 and 2,736,272,451

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Solution

The third proportional to 1,255,138,423 and 2,736,272,451 is: 5,965,228,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,138,423 : 2,736,272,451 = 2,736,272,451 : x
  2. Step 2: Convert to fraction form
    1,255,138,423/2,736,272,451 = 2,736,272,451/x
  3. Step 3: Cross multiply
    1,255,138,423x = 2,736,272,451 × 2,736,272,451
  4. Step 4: Simplify right side
    1,255,138,423x = 7,487,186,926,101,547,008
  5. Step 5: Solve for x
    x = 7,487,186,926,101,547,008/1,255,138,423
  6. Step 6: Final answer
    x = 5,965,228,048.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.