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Finding the Fourth Proportional to 2,881.28, 4,322.52 and 933.48

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Solution

The fourth proportional to 2,881.28, 4,322.52 and 933.48 is: 1,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.28 : 4,322.52 = 933.48 : x
  2. Step 2: Convert to fraction form
    2,881.28/4,322.52 = 933.48/x
  3. Step 3: Cross multiply
    2,881.28x = 4,322.52 × 933.48
  4. Step 4: Simplify right side
    2,881.28x = 4,034,985.97
  5. Step 5: Solve for x
    x = 4,034,985.97/2,881.28
  6. Step 6: Final answer
    x = 1,400.41

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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.