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Finding the Third Proportional to 5,921,440 and 12,913,780

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Solution

The third proportional to 5,921,440 and 12,913,780 is: 28,163,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921,440 : 12,913,780 = 12,913,780 : x
  2. Step 2: Convert to fraction form
    5,921,440/12,913,780 = 12,913,780/x
  3. Step 3: Cross multiply
    5,921,440x = 12,913,780 × 12,913,780
  4. Step 4: Simplify right side
    5,921,440x = 166,765,713,888,400
  5. Step 5: Solve for x
    x = 166,765,713,888,400/5,921,440
  6. Step 6: Final answer
    x = 28,163,033.64

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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.