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Finding the Fourth Proportional to 8,321,392.40, 12,463,426.20 and 8,321,392.40

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Solution

The fourth proportional to 8,321,392.40, 12,463,426.20 and 8,321,392.40 is: 12,463,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,392.40 : 12,463,426.20 = 8,321,392.40 : x
  2. Step 2: Convert to fraction form
    8,321,392.40/12,463,426.20 = 8,321,392.40/x
  3. Step 3: Cross multiply
    8,321,392.40x = 12,463,426.20 × 8,321,392.40
  4. Step 4: Simplify right side
    8,321,392.40x = 103,713,060,058,640.88
  5. Step 5: Solve for x
    x = 103,713,060,058,640.88/8,321,392.40
  6. Step 6: Final answer
    x = 12,463,426.20

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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.