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Finding the Fourth Proportional to 1,662.47, 2,295.36 and 1,033.28

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Solution

The fourth proportional to 1,662.47, 2,295.36 and 1,033.28 is: 1,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.47 : 2,295.36 = 1,033.28 : x
  2. Step 2: Convert to fraction form
    1,662.47/2,295.36 = 1,033.28/x
  3. Step 3: Cross multiply
    1,662.47x = 2,295.36 × 1,033.28
  4. Step 4: Simplify right side
    1,662.47x = 2,371,740.26
  5. Step 5: Solve for x
    x = 2,371,740.26/1,662.47
  6. Step 6: Final answer
    x = 1,426.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.