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Finding the Fourth Proportional to 5,707.92, 8,561.88 and 1,812.33

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Solution

The fourth proportional to 5,707.92, 8,561.88 and 1,812.33 is: 2,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.92 : 8,561.88 = 1,812.33 : x
  2. Step 2: Convert to fraction form
    5,707.92/8,561.88 = 1,812.33/x
  3. Step 3: Cross multiply
    5,707.92x = 8,561.88 × 1,812.33
  4. Step 4: Simplify right side
    5,707.92x = 15,516,951.98
  5. Step 5: Solve for x
    x = 15,516,951.98/5,707.92
  6. Step 6: Final answer
    x = 2,718.50

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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.