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Finding the Fourth Proportional to 5,607.92, 8,412.28 and 1,908.66

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Solution

The fourth proportional to 5,607.92, 8,412.28 and 1,908.66 is: 2,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.92 : 8,412.28 = 1,908.66 : x
  2. Step 2: Convert to fraction form
    5,607.92/8,412.28 = 1,908.66/x
  3. Step 3: Cross multiply
    5,607.92x = 8,412.28 × 1,908.66
  4. Step 4: Simplify right side
    5,607.92x = 16,056,182.34
  5. Step 5: Solve for x
    x = 16,056,182.34/5,607.92
  6. Step 6: Final answer
    x = 2,863.13

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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.