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Finding the Fourth Proportional to 1,583.11, 2,184.69 and 954

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Solution

The fourth proportional to 1,583.11, 2,184.69 and 954 is: 1,316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.11 : 2,184.69 = 954 : x
  2. Step 2: Convert to fraction form
    1,583.11/2,184.69 = 954/x
  3. Step 3: Cross multiply
    1,583.11x = 2,184.69 × 954
  4. Step 4: Simplify right side
    1,583.11x = 2,084,192.47
  5. Step 5: Solve for x
    x = 2,084,192.47/1,583.11
  6. Step 6: Final answer
    x = 1,316.52

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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.