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Finding the Fourth Proportional to 5,677.92, 8,516.88 and 1,782.62

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Solution

The fourth proportional to 5,677.92, 8,516.88 and 1,782.62 is: 2,673.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.92 : 8,516.88 = 1,782.62 : x
  2. Step 2: Convert to fraction form
    5,677.92/8,516.88 = 1,782.62/x
  3. Step 3: Cross multiply
    5,677.92x = 8,516.88 × 1,782.62
  4. Step 4: Simplify right side
    5,677.92x = 15,182,360.63
  5. Step 5: Solve for x
    x = 15,182,360.63/5,677.92
  6. Step 6: Final answer
    x = 2,673.93

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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.