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Finding the Third Proportional to 30,355,020 and 66,257,352

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Solution

The third proportional to 30,355,020 and 66,257,352 is: 144,623,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,355,020 : 66,257,352 = 66,257,352 : x
  2. Step 2: Convert to fraction form
    30,355,020/66,257,352 = 66,257,352/x
  3. Step 3: Cross multiply
    30,355,020x = 66,257,352 × 66,257,352
  4. Step 4: Simplify right side
    30,355,020x = 4,390,036,694,051,904
  5. Step 5: Solve for x
    x = 4,390,036,694,051,904/30,355,020
  6. Step 6: Final answer
    x = 144,623,086.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.