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Finding the Fourth Proportional to 1,666.44, 2,495.07 and 1,512.68

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Solution

The fourth proportional to 1,666.44, 2,495.07 and 1,512.68 is: 2,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.44 : 2,495.07 = 1,512.68 : x
  2. Step 2: Convert to fraction form
    1,666.44/2,495.07 = 1,512.68/x
  3. Step 3: Cross multiply
    1,666.44x = 2,495.07 × 1,512.68
  4. Step 4: Simplify right side
    1,666.44x = 3,774,230.01
  5. Step 5: Solve for x
    x = 3,774,230.01/1,666.44
  6. Step 6: Final answer
    x = 2,264.85

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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.