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Finding the Third Proportional to 19,966,770 and 28,532,979

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Solution

The third proportional to 19,966,770 and 28,532,979 is: 40,774,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966,770 : 28,532,979 = 28,532,979 : x
  2. Step 2: Convert to fraction form
    19,966,770/28,532,979 = 28,532,979/x
  3. Step 3: Cross multiply
    19,966,770x = 28,532,979 × 28,532,979
  4. Step 4: Simplify right side
    19,966,770x = 814,130,890,614,441
  5. Step 5: Solve for x
    x = 814,130,890,614,441/19,966,770
  6. Step 6: Final answer
    x = 40,774,291.02

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.