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Finding the Fourth Proportional to 7,662.44, 10,572.22 and 4,678.08

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Solution

The fourth proportional to 7,662.44, 10,572.22 and 4,678.08 is: 6,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.44 : 10,572.22 = 4,678.08 : x
  2. Step 2: Convert to fraction form
    7,662.44/10,572.22 = 4,678.08/x
  3. Step 3: Cross multiply
    7,662.44x = 10,572.22 × 4,678.08
  4. Step 4: Simplify right side
    7,662.44x = 49,457,690.94
  5. Step 5: Solve for x
    x = 49,457,690.94/7,662.44
  6. Step 6: Final answer
    x = 6,454.56

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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.