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Finding the Fourth Proportional to 7,551.65, 11,327.45 and 2,621.27

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Solution

The fourth proportional to 7,551.65, 11,327.45 and 2,621.27 is: 3,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.65 : 11,327.45 = 2,621.27 : x
  2. Step 2: Convert to fraction form
    7,551.65/11,327.45 = 2,621.27/x
  3. Step 3: Cross multiply
    7,551.65x = 11,327.45 × 2,621.27
  4. Step 4: Simplify right side
    7,551.65x = 29,692,235.12
  5. Step 5: Solve for x
    x = 29,692,235.12/7,551.65
  6. Step 6: Final answer
    x = 3,931.89

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Similar ratio
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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.