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Finding the Fourth Proportional to 5,810.89, 8,019.08 and 3,158.30

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Solution

The fourth proportional to 5,810.89, 8,019.08 and 3,158.30 is: 4,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.89 : 8,019.08 = 3,158.30 : x
  2. Step 2: Convert to fraction form
    5,810.89/8,019.08 = 3,158.30/x
  3. Step 3: Cross multiply
    5,810.89x = 8,019.08 × 3,158.30
  4. Step 4: Simplify right side
    5,810.89x = 25,326,604.48
  5. Step 5: Solve for x
    x = 25,326,604.48/5,810.89
  6. Step 6: Final answer
    x = 4,358.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.