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Finding the Fourth Proportional to 12,372.77, 17,072.01 and 7,336.05

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Solution

The fourth proportional to 12,372.77, 17,072.01 and 7,336.05 is: 10,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.77 : 17,072.01 = 7,336.05 : x
  2. Step 2: Convert to fraction form
    12,372.77/17,072.01 = 7,336.05/x
  3. Step 3: Cross multiply
    12,372.77x = 17,072.01 × 7,336.05
  4. Step 4: Simplify right side
    12,372.77x = 125,241,118.96
  5. Step 5: Solve for x
    x = 125,241,118.96/12,372.77
  6. Step 6: Final answer
    x = 10,122.32

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.