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Finding the Fourth Proportional to 5,800.75, 8,702.61 and 1,905.19

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Solution

The fourth proportional to 5,800.75, 8,702.61 and 1,905.19 is: 2,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,800.75 : 8,702.61 = 1,905.19 : x
  2. Step 2: Convert to fraction form
    5,800.75/8,702.61 = 1,905.19/x
  3. Step 3: Cross multiply
    5,800.75x = 8,702.61 × 1,905.19
  4. Step 4: Simplify right side
    5,800.75x = 16,580,125.55
  5. Step 5: Solve for x
    x = 16,580,125.55/5,800.75
  6. Step 6: Final answer
    x = 2,858.27

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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.