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Finding the Fourth Proportional to 16,912,458,520.80, 25,368,687,781.20 and 16,912,458,520.80

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Solution

The fourth proportional to 16,912,458,520.80, 25,368,687,781.20 and 16,912,458,520.80 is: 25,368,687,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912,458,520.80 : 25,368,687,781.20 = 16,912,458,520.80 : x
  2. Step 2: Convert to fraction form
    16,912,458,520.80/25,368,687,781.20 = 16,912,458,520.80/x
  3. Step 3: Cross multiply
    16,912,458,520.80x = 25,368,687,781.20 × 16,912,458,520.80
  4. Step 4: Simplify right side
    16,912,458,520.80x = 429,046,879,826,670,780,416
  5. Step 5: Solve for x
    x = 429,046,879,826,670,780,416/16,912,458,520.80
  6. Step 6: Final answer
    x = 25,368,687,781.20

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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.