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Finding the Fourth Proportional to 3,592.80, 5,389.44 and 960.36

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Solution

The fourth proportional to 3,592.80, 5,389.44 and 960.36 is: 1,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.80 : 5,389.44 = 960.36 : x
  2. Step 2: Convert to fraction form
    3,592.80/5,389.44 = 960.36/x
  3. Step 3: Cross multiply
    3,592.80x = 5,389.44 × 960.36
  4. Step 4: Simplify right side
    3,592.80x = 5,175,802.60
  5. Step 5: Solve for x
    x = 5,175,802.60/3,592.80
  6. Step 6: Final answer
    x = 1,440.60

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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.