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Finding the Third Proportional to 2,148,176,479 and 4,626,896,138

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Solution

The third proportional to 2,148,176,479 and 4,626,896,138 is: 9,965,739,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148,176,479 : 4,626,896,138 = 4,626,896,138 : x
  2. Step 2: Convert to fraction form
    2,148,176,479/4,626,896,138 = 4,626,896,138/x
  3. Step 3: Cross multiply
    2,148,176,479x = 4,626,896,138 × 4,626,896,138
  4. Step 4: Simplify right side
    2,148,176,479x = 21,408,167,871,839,313,920
  5. Step 5: Solve for x
    x = 21,408,167,871,839,313,920/2,148,176,479
  6. Step 6: Final answer
    x = 9,965,739,817.52

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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.