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Finding the Third Proportional to 873,637 and 1,868,720

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Solution

The third proportional to 873,637 and 1,868,720 is: 3,997,214.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,637 : 1,868,720 = 1,868,720 : x
  2. Step 2: Convert to fraction form
    873,637/1,868,720 = 1,868,720/x
  3. Step 3: Cross multiply
    873,637x = 1,868,720 × 1,868,720
  4. Step 4: Simplify right side
    873,637x = 3,492,114,438,400
  5. Step 5: Solve for x
    x = 3,492,114,438,400/873,637
  6. Step 6: Final answer
    x = 3,997,214.45

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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.