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Finding the Fourth Proportional to 10,576.71, 15,865.27 and 3,555.43

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Solution

The fourth proportional to 10,576.71, 15,865.27 and 3,555.43 is: 5,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,576.71 : 15,865.27 = 3,555.43 : x
  2. Step 2: Convert to fraction form
    10,576.71/15,865.27 = 3,555.43/x
  3. Step 3: Cross multiply
    10,576.71x = 15,865.27 × 3,555.43
  4. Step 4: Simplify right side
    10,576.71x = 56,407,808.36
  5. Step 5: Solve for x
    x = 56,407,808.36/10,576.71
  6. Step 6: Final answer
    x = 5,333.21

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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.