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Finding the Third Proportional to 2,156,643.81 and 4,616,240.25

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Solution

The third proportional to 2,156,643.81 and 4,616,240.25 is: 9,880,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,643.81 : 4,616,240.25 = 4,616,240.25 : x
  2. Step 2: Convert to fraction form
    2,156,643.81/4,616,240.25 = 4,616,240.25/x
  3. Step 3: Cross multiply
    2,156,643.81x = 4,616,240.25 × 4,616,240.25
  4. Step 4: Simplify right side
    2,156,643.81x = 21,309,674,045,720.06
  5. Step 5: Solve for x
    x = 21,309,674,045,720.06/2,156,643.81
  6. Step 6: Final answer
    x = 9,880,942.75

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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.