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Finding the Fourth Proportional to 1,855.02, 2,559.63 and 1,068.92

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Solution

The fourth proportional to 1,855.02, 2,559.63 and 1,068.92 is: 1,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.02 : 2,559.63 = 1,068.92 : x
  2. Step 2: Convert to fraction form
    1,855.02/2,559.63 = 1,068.92/x
  3. Step 3: Cross multiply
    1,855.02x = 2,559.63 × 1,068.92
  4. Step 4: Simplify right side
    1,855.02x = 2,736,039.70
  5. Step 5: Solve for x
    x = 2,736,039.70/1,855.02
  6. Step 6: Final answer
    x = 1,474.94

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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.