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Finding the Fourth Proportional to 5,119.32, 7,057.74 and 5,008.92

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Solution

The fourth proportional to 5,119.32, 7,057.74 and 5,008.92 is: 6,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.32 : 7,057.74 = 5,008.92 : x
  2. Step 2: Convert to fraction form
    5,119.32/7,057.74 = 5,008.92/x
  3. Step 3: Cross multiply
    5,119.32x = 7,057.74 × 5,008.92
  4. Step 4: Simplify right side
    5,119.32x = 35,351,655.04
  5. Step 5: Solve for x
    x = 35,351,655.04/5,119.32
  6. Step 6: Final answer
    x = 6,905.54

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Half scale
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Double 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.