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Finding the Fourth Proportional to 7,664.54, 10,570.72 and 6,472.28

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Solution

The fourth proportional to 7,664.54, 10,570.72 and 6,472.28 is: 8,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.54 : 10,570.72 = 6,472.28 : x
  2. Step 2: Convert to fraction form
    7,664.54/10,570.72 = 6,472.28/x
  3. Step 3: Cross multiply
    7,664.54x = 10,570.72 × 6,472.28
  4. Step 4: Simplify right side
    7,664.54x = 68,416,659.64
  5. Step 5: Solve for x
    x = 68,416,659.64/7,664.54
  6. Step 6: Final answer
    x = 8,926.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.