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Finding the Third Proportional to 19,966,812 and 28,533,036

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Solution

The third proportional to 19,966,812 and 28,533,036 is: 40,774,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966,812 : 28,533,036 = 28,533,036 : x
  2. Step 2: Convert to fraction form
    19,966,812/28,533,036 = 28,533,036/x
  3. Step 3: Cross multiply
    19,966,812x = 28,533,036 × 28,533,036
  4. Step 4: Simplify right side
    19,966,812x = 814,134,143,377,296
  5. Step 5: Solve for x
    x = 814,134,143,377,296/19,966,812
  6. Step 6: Final answer
    x = 40,774,368.16

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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.