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Finding the Fourth Proportional to 18,625,993,670.70, 27,938,990,506.05 and 18,625,993,670.70

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Solution

The fourth proportional to 18,625,993,670.70, 27,938,990,506.05 and 18,625,993,670.70 is: 27,938,990,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625,993,670.70 : 27,938,990,506.05 = 18,625,993,670.70 : x
  2. Step 2: Convert to fraction form
    18,625,993,670.70/27,938,990,506.05 = 18,625,993,670.70/x
  3. Step 3: Cross multiply
    18,625,993,670.70x = 27,938,990,506.05 × 18,625,993,670.70
  4. Step 4: Simplify right side
    18,625,993,670.70x = 520,391,460,331,434,672,128
  5. Step 5: Solve for x
    x = 520,391,460,331,434,672,128/18,625,993,670.70
  6. Step 6: Final answer
    x = 27,938,990,506.05

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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.