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Finding the Third Proportional to 21,579,840 and 47,113,792

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Solution

The third proportional to 21,579,840 and 47,113,792 is: 102,860,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579,840 : 47,113,792 = 47,113,792 : x
  2. Step 2: Convert to fraction form
    21,579,840/47,113,792 = 47,113,792/x
  3. Step 3: Cross multiply
    21,579,840x = 47,113,792 × 47,113,792
  4. Step 4: Simplify right side
    21,579,840x = 2,219,709,396,619,264
  5. Step 5: Solve for x
    x = 2,219,709,396,619,264/21,579,840
  6. Step 6: Final answer
    x = 102,860,326.89

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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.