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Finding the Fourth Proportional to 18,667,419,346.70, 28,001,129,020.06 and 18,667,419,346.70

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Solution

The fourth proportional to 18,667,419,346.70, 28,001,129,020.06 and 18,667,419,346.70 is: 28,001,129,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667,419,346.70 : 28,001,129,020.06 = 18,667,419,346.70 : x
  2. Step 2: Convert to fraction form
    18,667,419,346.70/28,001,129,020.06 = 18,667,419,346.70/x
  3. Step 3: Cross multiply
    18,667,419,346.70x = 28,001,129,020.06 × 18,667,419,346.70
  4. Step 4: Simplify right side
    18,667,419,346.70x = 522,708,817,598,510,923,776
  5. Step 5: Solve for x
    x = 522,708,817,598,510,923,776/18,667,419,346.70
  6. Step 6: Final answer
    x = 28,001,129,020.06

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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.