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Finding the Fourth Proportional to 1,153.14, 1,726.58 and 968.60

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Solution

The fourth proportional to 1,153.14, 1,726.58 and 968.60 is: 1,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.14 : 1,726.58 = 968.60 : x
  2. Step 2: Convert to fraction form
    1,153.14/1,726.58 = 968.60/x
  3. Step 3: Cross multiply
    1,153.14x = 1,726.58 × 968.60
  4. Step 4: Simplify right side
    1,153.14x = 1,672,365.39
  5. Step 5: Solve for x
    x = 1,672,365.39/1,153.14
  6. Step 6: Final answer
    x = 1,450.27

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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.