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Finding the Fourth Proportional to 3,970.72, 5,955.88 and 1,048.92

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Solution

The fourth proportional to 3,970.72, 5,955.88 and 1,048.92 is: 1,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.72 : 5,955.88 = 1,048.92 : x
  2. Step 2: Convert to fraction form
    3,970.72/5,955.88 = 1,048.92/x
  3. Step 3: Cross multiply
    3,970.72x = 5,955.88 × 1,048.92
  4. Step 4: Simplify right side
    3,970.72x = 6,247,241.65
  5. Step 5: Solve for x
    x = 6,247,241.65/3,970.72
  6. Step 6: Final answer
    x = 1,573.33

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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.