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Finding the Third Proportional to 4,658,440 and 9,876,752

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Solution

The third proportional to 4,658,440 and 9,876,752 is: 20,940,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658,440 : 9,876,752 = 9,876,752 : x
  2. Step 2: Convert to fraction form
    4,658,440/9,876,752 = 9,876,752/x
  3. Step 3: Cross multiply
    4,658,440x = 9,876,752 × 9,876,752
  4. Step 4: Simplify right side
    4,658,440x = 97,550,230,069,504
  5. Step 5: Solve for x
    x = 97,550,230,069,504/4,658,440
  6. Step 6: Final answer
    x = 20,940,535.90

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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.