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Finding the Fourth Proportional to 11,800.65, 17,702.17 and 3,903.19

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Solution

The fourth proportional to 11,800.65, 17,702.17 and 3,903.19 is: 5,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.65 : 17,702.17 = 3,903.19 : x
  2. Step 2: Convert to fraction form
    11,800.65/17,702.17 = 3,903.19/x
  3. Step 3: Cross multiply
    11,800.65x = 17,702.17 × 3,903.19
  4. Step 4: Simplify right side
    11,800.65x = 69,094,889.89
  5. Step 5: Solve for x
    x = 69,094,889.89/11,800.65
  6. Step 6: Final answer
    x = 5,855.18

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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.