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Finding the Third Proportional to 15,418,864,708 and 20,803,668,570

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Solution

The third proportional to 15,418,864,708 and 20,803,668,570 is: 28,069,033,237.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418,864,708 : 20,803,668,570 = 20,803,668,570 : x
  2. Step 2: Convert to fraction form
    15,418,864,708/20,803,668,570 = 20,803,668,570/x
  3. Step 3: Cross multiply
    15,418,864,708x = 20,803,668,570 × 20,803,668,570
  4. Step 4: Simplify right side
    15,418,864,708x = 432,792,625,970,405,834,752
  5. Step 5: Solve for x
    x = 432,792,625,970,405,834,752/15,418,864,708
  6. Step 6: Final answer
    x = 28,069,033,237.31

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.