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Finding the Fourth Proportional to 5,820.32, 8,729.84 and 1,716

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Solution

The fourth proportional to 5,820.32, 8,729.84 and 1,716 is: 2,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.32 : 8,729.84 = 1,716 : x
  2. Step 2: Convert to fraction form
    5,820.32/8,729.84 = 1,716/x
  3. Step 3: Cross multiply
    5,820.32x = 8,729.84 × 1,716
  4. Step 4: Simplify right side
    5,820.32x = 14,980,405.44
  5. Step 5: Solve for x
    x = 14,980,405.44/5,820.32
  6. Step 6: Final answer
    x = 2,573.81

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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.