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Finding the Fourth Proportional to 1,672.66, 2,307.60 and 1,082.98

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Solution

The fourth proportional to 1,672.66, 2,307.60 and 1,082.98 is: 1,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.66 : 2,307.60 = 1,082.98 : x
  2. Step 2: Convert to fraction form
    1,672.66/2,307.60 = 1,082.98/x
  3. Step 3: Cross multiply
    1,672.66x = 2,307.60 × 1,082.98
  4. Step 4: Simplify right side
    1,672.66x = 2,499,084.65
  5. Step 5: Solve for x
    x = 2,499,084.65/1,672.66
  6. Step 6: Final answer
    x = 1,494.08

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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.