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Finding the Third Proportional to 3,555,879,567.75 and 7,657,911,720

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Solution

The third proportional to 3,555,879,567.75 and 7,657,911,720 is: 16,492,012,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555,879,567.75 : 7,657,911,720 = 7,657,911,720 : x
  2. Step 2: Convert to fraction form
    3,555,879,567.75/7,657,911,720 = 7,657,911,720/x
  3. Step 3: Cross multiply
    3,555,879,567.75x = 7,657,911,720 × 7,657,911,720
  4. Step 4: Simplify right side
    3,555,879,567.75x = 58,643,611,911,313,358,848
  5. Step 5: Solve for x
    x = 58,643,611,911,313,358,848/3,555,879,567.75
  6. Step 6: Final answer
    x = 16,492,012,958.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.