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Finding the Third Proportional to 1,865,412 and 4,016,220

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Solution

The third proportional to 1,865,412 and 4,016,220 is: 8,646,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,412 : 4,016,220 = 4,016,220 : x
  2. Step 2: Convert to fraction form
    1,865,412/4,016,220 = 4,016,220/x
  3. Step 3: Cross multiply
    1,865,412x = 4,016,220 × 4,016,220
  4. Step 4: Simplify right side
    1,865,412x = 16,130,023,088,400
  5. Step 5: Solve for x
    x = 16,130,023,088,400/1,865,412
  6. Step 6: Final answer
    x = 8,646,895.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.