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Finding the Fourth Proportional to 6,532.56, 9,772.08 and 5,438.40

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Solution

The fourth proportional to 6,532.56, 9,772.08 and 5,438.40 is: 8,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,532.56 : 9,772.08 = 5,438.40 : x
  2. Step 2: Convert to fraction form
    6,532.56/9,772.08 = 5,438.40/x
  3. Step 3: Cross multiply
    6,532.56x = 9,772.08 × 5,438.40
  4. Step 4: Simplify right side
    6,532.56x = 53,144,479.87
  5. Step 5: Solve for x
    x = 53,144,479.87/6,532.56
  6. Step 6: Final answer
    x = 8,135.32

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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.