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Finding the Third Proportional to 21,215,556 and 46,317,312

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Solution

The third proportional to 21,215,556 and 46,317,312 is: 101,118,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215,556 : 46,317,312 = 46,317,312 : x
  2. Step 2: Convert to fraction form
    21,215,556/46,317,312 = 46,317,312/x
  3. Step 3: Cross multiply
    21,215,556x = 46,317,312 × 46,317,312
  4. Step 4: Simplify right side
    21,215,556x = 2,145,293,390,905,344
  5. Step 5: Solve for x
    x = 2,145,293,390,905,344/21,215,556
  6. Step 6: Final answer
    x = 101,118,886.11

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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.