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Finding the Fourth Proportional to 1,169.56, 1,762.35 and 968.64

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Solution

The fourth proportional to 1,169.56, 1,762.35 and 968.64 is: 1,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.56 : 1,762.35 = 968.64 : x
  2. Step 2: Convert to fraction form
    1,169.56/1,762.35 = 968.64/x
  3. Step 3: Cross multiply
    1,169.56x = 1,762.35 × 968.64
  4. Step 4: Simplify right side
    1,169.56x = 1,707,082.70
  5. Step 5: Solve for x
    x = 1,707,082.70/1,169.56
  6. Step 6: Final answer
    x = 1,459.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.