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Finding the Third Proportional to 873,724 and 1,868,880

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Solution

The third proportional to 873,724 and 1,868,880 is: 3,997,500.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,724 : 1,868,880 = 1,868,880 : x
  2. Step 2: Convert to fraction form
    873,724/1,868,880 = 1,868,880/x
  3. Step 3: Cross multiply
    873,724x = 1,868,880 × 1,868,880
  4. Step 4: Simplify right side
    873,724x = 3,492,712,454,400
  5. Step 5: Solve for x
    x = 3,492,712,454,400/873,724
  6. Step 6: Final answer
    x = 3,997,500.87

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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.