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Finding the Fourth Proportional to 5,855.41, 8,783.12 and 1,959.81

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Solution

The fourth proportional to 5,855.41, 8,783.12 and 1,959.81 is: 2,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.41 : 8,783.12 = 1,959.81 : x
  2. Step 2: Convert to fraction form
    5,855.41/8,783.12 = 1,959.81/x
  3. Step 3: Cross multiply
    5,855.41x = 8,783.12 × 1,959.81
  4. Step 4: Simplify right side
    5,855.41x = 17,213,246.41
  5. Step 5: Solve for x
    x = 17,213,246.41/5,855.41
  6. Step 6: Final answer
    x = 2,939.72

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Half scale
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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.