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Finding the Third Proportional to 987,511 and 2,114,986

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Solution

The third proportional to 987,511 and 2,114,986 is: 4,529,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,511 : 2,114,986 = 2,114,986 : x
  2. Step 2: Convert to fraction form
    987,511/2,114,986 = 2,114,986/x
  3. Step 3: Cross multiply
    987,511x = 2,114,986 × 2,114,986
  4. Step 4: Simplify right side
    987,511x = 4,473,165,780,196
  5. Step 5: Solve for x
    x = 4,473,165,780,196/987,511
  6. Step 6: Final answer
    x = 4,529,737.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.