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Finding the Fourth Proportional to 5,381,215,234.80, 8,071,822,852.20 and 5,381,215,234.80

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Solution

The fourth proportional to 5,381,215,234.80, 8,071,822,852.20 and 5,381,215,234.80 is: 8,071,822,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,215,234.80 : 8,071,822,852.20 = 5,381,215,234.80 : x
  2. Step 2: Convert to fraction form
    5,381,215,234.80/8,071,822,852.20 = 5,381,215,234.80/x
  3. Step 3: Cross multiply
    5,381,215,234.80x = 8,071,822,852.20 × 5,381,215,234.80
  4. Step 4: Simplify right side
    5,381,215,234.80x = 43,436,216,104,865,431,552
  5. Step 5: Solve for x
    x = 43,436,216,104,865,431,552/5,381,215,234.80
  6. Step 6: Final answer
    x = 8,071,822,852.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.