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Finding the Fourth Proportional to 1,888.44, 2,606.76 and 1,102.50

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Solution

The fourth proportional to 1,888.44, 2,606.76 and 1,102.50 is: 1,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.44 : 2,606.76 = 1,102.50 : x
  2. Step 2: Convert to fraction form
    1,888.44/2,606.76 = 1,102.50/x
  3. Step 3: Cross multiply
    1,888.44x = 2,606.76 × 1,102.50
  4. Step 4: Simplify right side
    1,888.44x = 2,873,952.90
  5. Step 5: Solve for x
    x = 2,873,952.90/1,888.44
  6. Step 6: Final answer
    x = 1,521.87

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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.