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Finding the Third Proportional to 15,896,434 and 35,390,240

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Solution

The third proportional to 15,896,434 and 35,390,240 is: 78,789,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896,434 : 35,390,240 = 35,390,240 : x
  2. Step 2: Convert to fraction form
    15,896,434/35,390,240 = 35,390,240/x
  3. Step 3: Cross multiply
    15,896,434x = 35,390,240 × 35,390,240
  4. Step 4: Simplify right side
    15,896,434x = 1,252,469,087,257,600
  5. Step 5: Solve for x
    x = 1,252,469,087,257,600/15,896,434
  6. Step 6: Final answer
    x = 78,789,311.32

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.