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Finding the Third Proportional to 7,261,416 and 15,643,172

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Solution

The third proportional to 7,261,416 and 15,643,172 is: 33,699,877.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261,416 : 15,643,172 = 15,643,172 : x
  2. Step 2: Convert to fraction form
    7,261,416/15,643,172 = 15,643,172/x
  3. Step 3: Cross multiply
    7,261,416x = 15,643,172 × 15,643,172
  4. Step 4: Simplify right side
    7,261,416x = 244,708,830,221,584
  5. Step 5: Solve for x
    x = 244,708,830,221,584/7,261,416
  6. Step 6: Final answer
    x = 33,699,877.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.