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Finding the Fourth Proportional to 3,552.60, 5,328.28 and 955.32

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Solution

The fourth proportional to 3,552.60, 5,328.28 and 955.32 is: 1,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.60 : 5,328.28 = 955.32 : x
  2. Step 2: Convert to fraction form
    3,552.60/5,328.28 = 955.32/x
  3. Step 3: Cross multiply
    3,552.60x = 5,328.28 × 955.32
  4. Step 4: Simplify right side
    3,552.60x = 5,090,212.45
  5. Step 5: Solve for x
    x = 5,090,212.45/3,552.60
  6. Step 6: Final answer
    x = 1,432.81

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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.