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Finding the Fourth Proportional to 3,955.02, 5,928.90 and 1,491.48

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Solution

The fourth proportional to 3,955.02, 5,928.90 and 1,491.48 is: 2,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.02 : 5,928.90 = 1,491.48 : x
  2. Step 2: Convert to fraction form
    3,955.02/5,928.90 = 1,491.48/x
  3. Step 3: Cross multiply
    3,955.02x = 5,928.90 × 1,491.48
  4. Step 4: Simplify right side
    3,955.02x = 8,842,835.77
  5. Step 5: Solve for x
    x = 8,842,835.77/3,955.02
  6. Step 6: Final answer
    x = 2,235.85

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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.