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Finding the Fourth Proportional to 13,704.69, 20,559.18 and 5,807.22

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Solution

The fourth proportional to 13,704.69, 20,559.18 and 5,807.22 is: 8,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.69 : 20,559.18 = 5,807.22 : x
  2. Step 2: Convert to fraction form
    13,704.69/20,559.18 = 5,807.22/x
  3. Step 3: Cross multiply
    13,704.69x = 20,559.18 × 5,807.22
  4. Step 4: Simplify right side
    13,704.69x = 119,391,681.28
  5. Step 5: Solve for x
    x = 119,391,681.28/13,704.69
  6. Step 6: Final answer
    x = 8,711.74

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1.5x scale

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.