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Finding the Fourth Proportional to 5,810.64, 8,717.04 and 1,914.24

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Solution

The fourth proportional to 5,810.64, 8,717.04 and 1,914.24 is: 2,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.64 : 8,717.04 = 1,914.24 : x
  2. Step 2: Convert to fraction form
    5,810.64/8,717.04 = 1,914.24/x
  3. Step 3: Cross multiply
    5,810.64x = 8,717.04 × 1,914.24
  4. Step 4: Simplify right side
    5,810.64x = 16,686,506.65
  5. Step 5: Solve for x
    x = 16,686,506.65/5,810.64
  6. Step 6: Final answer
    x = 2,871.72

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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.