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Finding the Fourth Proportional to 1,886.76, 2,817.43 and 1,540.77

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Solution

The fourth proportional to 1,886.76, 2,817.43 and 1,540.77 is: 2,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.76 : 2,817.43 = 1,540.77 : x
  2. Step 2: Convert to fraction form
    1,886.76/2,817.43 = 1,540.77/x
  3. Step 3: Cross multiply
    1,886.76x = 2,817.43 × 1,540.77
  4. Step 4: Simplify right side
    1,886.76x = 4,341,011.62
  5. Step 5: Solve for x
    x = 4,341,011.62/1,886.76
  6. Step 6: Final answer
    x = 2,300.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.