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Finding the Third Proportional to 7,891,545,143.50 and 17,172,320,130.50

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Solution

The third proportional to 7,891,545,143.50 and 17,172,320,130.50 is: 37,367,660,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891,545,143.50 : 17,172,320,130.50 = 17,172,320,130.50 : x
  2. Step 2: Convert to fraction form
    7,891,545,143.50/17,172,320,130.50 = 17,172,320,130.50/x
  3. Step 3: Cross multiply
    7,891,545,143.50x = 17,172,320,130.50 × 17,172,320,130.50
  4. Step 4: Simplify right side
    7,891,545,143.50x = 294,888,578,664,375,549,952
  5. Step 5: Solve for x
    x = 294,888,578,664,375,549,952/7,891,545,143.50
  6. Step 6: Final answer
    x = 37,367,660,363.35

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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.