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Finding the Fourth Proportional to 1,062.39, 1,465.86 and 922.26

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Solution

The fourth proportional to 1,062.39, 1,465.86 and 922.26 is: 1,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.39 : 1,465.86 = 922.26 : x
  2. Step 2: Convert to fraction form
    1,062.39/1,465.86 = 922.26/x
  3. Step 3: Cross multiply
    1,062.39x = 1,465.86 × 922.26
  4. Step 4: Simplify right side
    1,062.39x = 1,351,904.04
  5. Step 5: Solve for x
    x = 1,351,904.04/1,062.39
  6. Step 6: Final answer
    x = 1,272.51

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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.