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Finding the Fourth Proportional to 7,662.87, 11,486.15 and 4,368.87

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Solution

The fourth proportional to 7,662.87, 11,486.15 and 4,368.87 is: 6,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.87 : 11,486.15 = 4,368.87 : x
  2. Step 2: Convert to fraction form
    7,662.87/11,486.15 = 4,368.87/x
  3. Step 3: Cross multiply
    7,662.87x = 11,486.15 × 4,368.87
  4. Step 4: Simplify right side
    7,662.87x = 50,181,474.31
  5. Step 5: Solve for x
    x = 50,181,474.31/7,662.87
  6. Step 6: Final answer
    x = 6,548.65

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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.