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Finding the Fourth Proportional to 1,857.62, 2,561.60 and 1,592.98

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Solution

The fourth proportional to 1,857.62, 2,561.60 and 1,592.98 is: 2,196.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.62 : 2,561.60 = 1,592.98 : x
  2. Step 2: Convert to fraction form
    1,857.62/2,561.60 = 1,592.98/x
  3. Step 3: Cross multiply
    1,857.62x = 2,561.60 × 1,592.98
  4. Step 4: Simplify right side
    1,857.62x = 4,080,577.57
  5. Step 5: Solve for x
    x = 4,080,577.57/1,857.62
  6. Step 6: Final answer
    x = 2,196.67

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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.