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Finding the Fourth Proportional to 5,770.32, 8,656.76 and 1,666

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Solution

The fourth proportional to 5,770.32, 8,656.76 and 1,666 is: 2,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,770.32 : 8,656.76 = 1,666 : x
  2. Step 2: Convert to fraction form
    5,770.32/8,656.76 = 1,666/x
  3. Step 3: Cross multiply
    5,770.32x = 8,656.76 × 1,666
  4. Step 4: Simplify right side
    5,770.32x = 14,422,162.16
  5. Step 5: Solve for x
    x = 14,422,162.16/5,770.32
  6. Step 6: Final answer
    x = 2,499.37

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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.