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Finding the Third Proportional to 9,819,368,766 and 21,539,817,894

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Solution

The third proportional to 9,819,368,766 and 21,539,817,894 is: 47,249,855,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819,368,766 : 21,539,817,894 = 21,539,817,894 : x
  2. Step 2: Convert to fraction form
    9,819,368,766/21,539,817,894 = 21,539,817,894/x
  3. Step 3: Cross multiply
    9,819,368,766x = 21,539,817,894 × 21,539,817,894
  4. Step 4: Simplify right side
    9,819,368,766x = 463,963,754,906,682,589,184
  5. Step 5: Solve for x
    x = 463,963,754,906,682,589,184/9,819,368,766
  6. Step 6: Final answer
    x = 47,249,855,460.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.