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Finding the Third Proportional to 2,992,636.13 and 4,643,342.72

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Solution

The third proportional to 2,992,636.13 and 4,643,342.72 is: 7,204,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992,636.13 : 4,643,342.72 = 4,643,342.72 : x
  2. Step 2: Convert to fraction form
    2,992,636.13/4,643,342.72 = 4,643,342.72/x
  3. Step 3: Cross multiply
    2,992,636.13x = 4,643,342.72 × 4,643,342.72
  4. Step 4: Simplify right side
    2,992,636.13x = 21,560,631,603,768.64
  5. Step 5: Solve for x
    x = 21,560,631,603,768.64/2,992,636.13
  6. Step 6: Final answer
    x = 7,204,561.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.