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Finding the Fourth Proportional to 1,765.17, 2,435.96 and 968.48

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Solution

The fourth proportional to 1,765.17, 2,435.96 and 968.48 is: 1,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.17 : 2,435.96 = 968.48 : x
  2. Step 2: Convert to fraction form
    1,765.17/2,435.96 = 968.48/x
  3. Step 3: Cross multiply
    1,765.17x = 2,435.96 × 968.48
  4. Step 4: Simplify right side
    1,765.17x = 2,359,176.23
  5. Step 5: Solve for x
    x = 2,359,176.23/1,765.17
  6. Step 6: Final answer
    x = 1,336.52

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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.