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Finding the Fourth Proportional to 8,257,408.16, 12,386,112.23 and 8,257,408.16

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Solution

The fourth proportional to 8,257,408.16, 12,386,112.23 and 8,257,408.16 is: 12,386,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257,408.16 : 12,386,112.23 = 8,257,408.16 : x
  2. Step 2: Convert to fraction form
    8,257,408.16/12,386,112.23 = 8,257,408.16/x
  3. Step 3: Cross multiply
    8,257,408.16x = 12,386,112.23 × 8,257,408.16
  4. Step 4: Simplify right side
    8,257,408.16x = 102,277,184,157,390.77
  5. Step 5: Solve for x
    x = 102,277,184,157,390.77/8,257,408.16
  6. Step 6: Final answer
    x = 12,386,112.23

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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.