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Finding the Third Proportional to 4,176,688 and 6,645,990

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Solution

The third proportional to 4,176,688 and 6,645,990 is: 10,575,169.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176,688 : 6,645,990 = 6,645,990 : x
  2. Step 2: Convert to fraction form
    4,176,688/6,645,990 = 6,645,990/x
  3. Step 3: Cross multiply
    4,176,688x = 6,645,990 × 6,645,990
  4. Step 4: Simplify right side
    4,176,688x = 44,169,183,080,100
  5. Step 5: Solve for x
    x = 44,169,183,080,100/4,176,688
  6. Step 6: Final answer
    x = 10,575,169.39

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.