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Finding the Fourth Proportional to 5,807.28, 8,710.90 and 2,343.72

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Solution

The fourth proportional to 5,807.28, 8,710.90 and 2,343.72 is: 3,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.28 : 8,710.90 = 2,343.72 : x
  2. Step 2: Convert to fraction form
    5,807.28/8,710.90 = 2,343.72/x
  3. Step 3: Cross multiply
    5,807.28x = 8,710.90 × 2,343.72
  4. Step 4: Simplify right side
    5,807.28x = 20,415,910.55
  5. Step 5: Solve for x
    x = 20,415,910.55/5,807.28
  6. Step 6: Final answer
    x = 3,515.57

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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.