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Finding the Fourth Proportional to 7,331.99, 10,997.87 and 1,785.34

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Solution

The fourth proportional to 7,331.99, 10,997.87 and 1,785.34 is: 2,677.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.99 : 10,997.87 = 1,785.34 : x
  2. Step 2: Convert to fraction form
    7,331.99/10,997.87 = 1,785.34/x
  3. Step 3: Cross multiply
    7,331.99x = 10,997.87 × 1,785.34
  4. Step 4: Simplify right side
    7,331.99x = 19,634,914.19
  5. Step 5: Solve for x
    x = 19,634,914.19/7,331.99
  6. Step 6: Final answer
    x = 2,677.98

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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.