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Finding the Fourth Proportional to 12,093.72, 16,695.60 and 9,398.92

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Solution

The fourth proportional to 12,093.72, 16,695.60 and 9,398.92 is: 12,975.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.72 : 16,695.60 = 9,398.92 : x
  2. Step 2: Convert to fraction form
    12,093.72/16,695.60 = 9,398.92/x
  3. Step 3: Cross multiply
    12,093.72x = 16,695.60 × 9,398.92
  4. Step 4: Simplify right side
    12,093.72x = 156,920,608.75
  5. Step 5: Solve for x
    x = 156,920,608.75/12,093.72
  6. Step 6: Final answer
    x = 12,975.38

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Half scale
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Double scale
Find fourth proportional to 12,094.72, 16,696.98 and 9,399.92
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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.