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Finding the Fourth Proportional to 18,151,475.55, 25,430,961.45 and 18,151,475.55

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Solution

The fourth proportional to 18,151,475.55, 25,430,961.45 and 18,151,475.55 is: 25,430,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151,475.55 : 25,430,961.45 = 18,151,475.55 : x
  2. Step 2: Convert to fraction form
    18,151,475.55/25,430,961.45 = 18,151,475.55/x
  3. Step 3: Cross multiply
    18,151,475.55x = 25,430,961.45 × 18,151,475.55
  4. Step 4: Simplify right side
    18,151,475.55x = 461,609,474,972,667.56
  5. Step 5: Solve for x
    x = 461,609,474,972,667.56/18,151,475.55
  6. Step 6: Final answer
    x = 25,430,961.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.