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Finding the Fourth Proportional to 45,605.50, 68,408.25 and 12,323.01

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Solution

The fourth proportional to 45,605.50, 68,408.25 and 12,323.01 is: 18,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,605.50 : 68,408.25 = 12,323.01 : x
  2. Step 2: Convert to fraction form
    45,605.50/68,408.25 = 12,323.01/x
  3. Step 3: Cross multiply
    45,605.50x = 68,408.25 × 12,323.01
  4. Step 4: Simplify right side
    45,605.50x = 842,995,548.83
  5. Step 5: Solve for x
    x = 842,995,548.83/45,605.50
  6. Step 6: Final answer
    x = 18,484.52

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Double scale
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Similar ratio
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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.