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Finding the Third Proportional to 7,838,487 and 15,991,890

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Solution

The third proportional to 7,838,487 and 15,991,890 is: 32,626,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838,487 : 15,991,890 = 15,991,890 : x
  2. Step 2: Convert to fraction form
    7,838,487/15,991,890 = 15,991,890/x
  3. Step 3: Cross multiply
    7,838,487x = 15,991,890 × 15,991,890
  4. Step 4: Simplify right side
    7,838,487x = 255,740,545,772,100
  5. Step 5: Solve for x
    x = 255,740,545,772,100/7,838,487
  6. Step 6: Final answer
    x = 32,626,263.94

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.