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Finding the Fourth Proportional to 1,592.20, 2,386.05 and 889.54

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Solution

The fourth proportional to 1,592.20, 2,386.05 and 889.54 is: 1,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.20 : 2,386.05 = 889.54 : x
  2. Step 2: Convert to fraction form
    1,592.20/2,386.05 = 889.54/x
  3. Step 3: Cross multiply
    1,592.20x = 2,386.05 × 889.54
  4. Step 4: Simplify right side
    1,592.20x = 2,122,486.92
  5. Step 5: Solve for x
    x = 2,122,486.92/1,592.20
  6. Step 6: Final answer
    x = 1,333.05

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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.