Home / 13,576.91-20,368.58-5,675.02

Finding the Fourth Proportional to 13,576.91, 20,368.58 and 5,675.02

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Solution

The fourth proportional to 13,576.91, 20,368.58 and 5,675.02 is: 8,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.91 : 20,368.58 = 5,675.02 : x
  2. Step 2: Convert to fraction form
    13,576.91/20,368.58 = 5,675.02/x
  3. Step 3: Cross multiply
    13,576.91x = 20,368.58 × 5,675.02
  4. Step 4: Simplify right side
    13,576.91x = 115,592,019.58
  5. Step 5: Solve for x
    x = 115,592,019.58/13,576.91
  6. Step 6: Final answer
    x = 8,513.87

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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.