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Finding the Fourth Proportional to 8,393,166.40, 12,589,749.60 and 8,393,166.40

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Solution

The fourth proportional to 8,393,166.40, 12,589,749.60 and 8,393,166.40 is: 12,589,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393,166.40 : 12,589,749.60 = 8,393,166.40 : x
  2. Step 2: Convert to fraction form
    8,393,166.40/12,589,749.60 = 8,393,166.40/x
  3. Step 3: Cross multiply
    8,393,166.40x = 12,589,749.60 × 8,393,166.40
  4. Step 4: Simplify right side
    8,393,166.40x = 105,667,863,327,133.44
  5. Step 5: Solve for x
    x = 105,667,863,327,133.44/8,393,166.40
  6. Step 6: Final answer
    x = 12,589,749.60

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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.