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Finding the Third Proportional to 19,966,815 and 28,533,040

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Solution

The third proportional to 19,966,815 and 28,533,040 is: 40,774,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966,815 : 28,533,040 = 28,533,040 : x
  2. Step 2: Convert to fraction form
    19,966,815/28,533,040 = 28,533,040/x
  3. Step 3: Cross multiply
    19,966,815x = 28,533,040 × 28,533,040
  4. Step 4: Simplify right side
    19,966,815x = 814,134,371,641,600
  5. Step 5: Solve for x
    x = 814,134,371,641,600/19,966,815
  6. Step 6: Final answer
    x = 40,774,373.46

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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.