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Finding the Third Proportional to 1,928,734.50 and 4,200,342

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Solution

The third proportional to 1,928,734.50 and 4,200,342 is: 9,147,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,734.50 : 4,200,342 = 4,200,342 : x
  2. Step 2: Convert to fraction form
    1,928,734.50/4,200,342 = 4,200,342/x
  3. Step 3: Cross multiply
    1,928,734.50x = 4,200,342 × 4,200,342
  4. Step 4: Simplify right side
    1,928,734.50x = 17,642,872,916,964
  5. Step 5: Solve for x
    x = 17,642,872,916,964/1,928,734.50
  6. Step 6: Final answer
    x = 9,147,382.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.