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Finding the Fourth Proportional to 1,583.74, 2,373.18 and 1,340.74

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Solution

The fourth proportional to 1,583.74, 2,373.18 and 1,340.74 is: 2,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.74 : 2,373.18 = 1,340.74 : x
  2. Step 2: Convert to fraction form
    1,583.74/2,373.18 = 1,340.74/x
  3. Step 3: Cross multiply
    1,583.74x = 2,373.18 × 1,340.74
  4. Step 4: Simplify right side
    1,583.74x = 3,181,817.35
  5. Step 5: Solve for x
    x = 3,181,817.35/1,583.74
  6. Step 6: Final answer
    x = 2,009.05

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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.