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Finding the Third Proportional to 28,973,911 and 61,402,189

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Solution

The third proportional to 28,973,911 and 61,402,189 is: 130,124,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,911 : 61,402,189 = 61,402,189 : x
  2. Step 2: Convert to fraction form
    28,973,911/61,402,189 = 61,402,189/x
  3. Step 3: Cross multiply
    28,973,911x = 61,402,189 × 61,402,189
  4. Step 4: Simplify right side
    28,973,911x = 3,770,228,813,991,721
  5. Step 5: Solve for x
    x = 3,770,228,813,991,721/28,973,911
  6. Step 6: Final answer
    x = 130,124,953.24

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.