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Finding the Fourth Proportional to 1,784.04, 2,679.30 and 1,374.18

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Solution

The fourth proportional to 1,784.04, 2,679.30 and 1,374.18 is: 2,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.04 : 2,679.30 = 1,374.18 : x
  2. Step 2: Convert to fraction form
    1,784.04/2,679.30 = 1,374.18/x
  3. Step 3: Cross multiply
    1,784.04x = 2,679.30 × 1,374.18
  4. Step 4: Simplify right side
    1,784.04x = 3,681,840.47
  5. Step 5: Solve for x
    x = 3,681,840.47/1,784.04
  6. Step 6: Final answer
    x = 2,063.77

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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.