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Finding the Fourth Proportional to 1,996.10, 2,992.29 and 955.59

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Solution

The fourth proportional to 1,996.10, 2,992.29 and 955.59 is: 1,432.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.10 : 2,992.29 = 955.59 : x
  2. Step 2: Convert to fraction form
    1,996.10/2,992.29 = 955.59/x
  3. Step 3: Cross multiply
    1,996.10x = 2,992.29 × 955.59
  4. Step 4: Simplify right side
    1,996.10x = 2,859,402.40
  5. Step 5: Solve for x
    x = 2,859,402.40/1,996.10
  6. Step 6: Final answer
    x = 1,432.49

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1.5x scale

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.