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Finding the Fourth Proportional to 2,995, 4,492.80 and 943

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Solution

The fourth proportional to 2,995, 4,492.80 and 943 is: 1,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995 : 4,492.80 = 943 : x
  2. Step 2: Convert to fraction form
    2,995/4,492.80 = 943/x
  3. Step 3: Cross multiply
    2,995x = 4,492.80 × 943
  4. Step 4: Simplify right side
    2,995x = 4,236,710.40
  5. Step 5: Solve for x
    x = 4,236,710.40/2,995
  6. Step 6: Final answer
    x = 1,414.59

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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.