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Finding the Fourth Proportional to 2,974.74, 4,461.93 and 894.70

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Solution

The fourth proportional to 2,974.74, 4,461.93 and 894.70 is: 1,341.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.74 : 4,461.93 = 894.70 : x
  2. Step 2: Convert to fraction form
    2,974.74/4,461.93 = 894.70/x
  3. Step 3: Cross multiply
    2,974.74x = 4,461.93 × 894.70
  4. Step 4: Simplify right side
    2,974.74x = 3,992,066.46
  5. Step 5: Solve for x
    x = 3,992,066.46/2,974.74
  6. Step 6: Final answer
    x = 1,341.99

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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.