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Finding the Third Proportional to 30,280,848 and 66,423,639

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Solution

The third proportional to 30,280,848 and 66,423,639 is: 145,705,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280,848 : 66,423,639 = 66,423,639 : x
  2. Step 2: Convert to fraction form
    30,280,848/66,423,639 = 66,423,639/x
  3. Step 3: Cross multiply
    30,280,848x = 66,423,639 × 66,423,639
  4. Step 4: Simplify right side
    30,280,848x = 4,412,099,818,002,321
  5. Step 5: Solve for x
    x = 4,412,099,818,002,321/30,280,848
  6. Step 6: Final answer
    x = 145,705,953.08

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.