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Finding the Fourth Proportional to 5,530.94, 7,631.07 and 3,291.69

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Solution

The fourth proportional to 5,530.94, 7,631.07 and 3,291.69 is: 4,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.94 : 7,631.07 = 3,291.69 : x
  2. Step 2: Convert to fraction form
    5,530.94/7,631.07 = 3,291.69/x
  3. Step 3: Cross multiply
    5,530.94x = 7,631.07 × 3,291.69
  4. Step 4: Simplify right side
    5,530.94x = 25,119,116.81
  5. Step 5: Solve for x
    x = 25,119,116.81/5,530.94
  6. Step 6: Final answer
    x = 4,541.56

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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.