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Finding the Fourth Proportional to 1,583.73, 2,186.01 and 994.25

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Solution

The fourth proportional to 1,583.73, 2,186.01 and 994.25 is: 1,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.73 : 2,186.01 = 994.25 : x
  2. Step 2: Convert to fraction form
    1,583.73/2,186.01 = 994.25/x
  3. Step 3: Cross multiply
    1,583.73x = 2,186.01 × 994.25
  4. Step 4: Simplify right side
    1,583.73x = 2,173,429.51
  5. Step 5: Solve for x
    x = 2,173,429.51/1,583.73
  6. Step 6: Final answer
    x = 1,372.35

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1.5x scale

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.