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Finding the Fourth Proportional to 5,910.80, 8,858.10 and 4,817.30

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Solution

The fourth proportional to 5,910.80, 8,858.10 and 4,817.30 is: 7,219.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.80 : 8,858.10 = 4,817.30 : x
  2. Step 2: Convert to fraction form
    5,910.80/8,858.10 = 4,817.30/x
  3. Step 3: Cross multiply
    5,910.80x = 8,858.10 × 4,817.30
  4. Step 4: Simplify right side
    5,910.80x = 42,672,125.13
  5. Step 5: Solve for x
    x = 42,672,125.13/5,910.80
  6. Step 6: Final answer
    x = 7,219.35

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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.