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Finding the Fourth Proportional to 7,208.64, 10,807.44 and 3,310.32

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Solution

The fourth proportional to 7,208.64, 10,807.44 and 3,310.32 is: 4,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.64 : 10,807.44 = 3,310.32 : x
  2. Step 2: Convert to fraction form
    7,208.64/10,807.44 = 3,310.32/x
  3. Step 3: Cross multiply
    7,208.64x = 10,807.44 × 3,310.32
  4. Step 4: Simplify right side
    7,208.64x = 35,776,084.78
  5. Step 5: Solve for x
    x = 35,776,084.78/7,208.64
  6. Step 6: Final answer
    x = 4,962.95

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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.