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Finding the Third Proportional to 985,129 and 2,127,434

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Solution

The third proportional to 985,129 and 2,127,434 is: 4,594,297.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,129 : 2,127,434 = 2,127,434 : x
  2. Step 2: Convert to fraction form
    985,129/2,127,434 = 2,127,434/x
  3. Step 3: Cross multiply
    985,129x = 2,127,434 × 2,127,434
  4. Step 4: Simplify right side
    985,129x = 4,525,975,424,356
  5. Step 5: Solve for x
    x = 4,525,975,424,356/985,129
  6. Step 6: Final answer
    x = 4,594,297.22

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.