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Finding the Fourth Proportional to 20,057,593,125.90, 30,086,389,688.85 and 20,057,593,125.90

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Solution

The fourth proportional to 20,057,593,125.90, 30,086,389,688.85 and 20,057,593,125.90 is: 30,086,389,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057,593,125.90 : 30,086,389,688.85 = 20,057,593,125.90 : x
  2. Step 2: Convert to fraction form
    20,057,593,125.90/30,086,389,688.85 = 20,057,593,125.90/x
  3. Step 3: Cross multiply
    20,057,593,125.90x = 30,086,389,688.85 × 20,057,593,125.90
  4. Step 4: Simplify right side
    20,057,593,125.90x = 603,460,563,006,226,432,000
  5. Step 5: Solve for x
    x = 603,460,563,006,226,432,000/20,057,593,125.90
  6. Step 6: Final answer
    x = 30,086,389,688.85

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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.