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Finding the Fourth Proportional to 18,372,486,002.55, 27,558,729,003.83 and 18,372,486,002.55

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Solution

The fourth proportional to 18,372,486,002.55, 27,558,729,003.83 and 18,372,486,002.55 is: 27,558,729,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,486,002.55 : 27,558,729,003.83 = 18,372,486,002.55 : x
  2. Step 2: Convert to fraction form
    18,372,486,002.55/27,558,729,003.83 = 18,372,486,002.55/x
  3. Step 3: Cross multiply
    18,372,486,002.55x = 27,558,729,003.83 × 18,372,486,002.55
  4. Step 4: Simplify right side
    18,372,486,002.55x = 506,322,362,870,843,506,688
  5. Step 5: Solve for x
    x = 506,322,362,870,843,506,688/18,372,486,002.55
  6. Step 6: Final answer
    x = 27,558,729,003.83

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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.