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Finding the Fourth Proportional to 1,651.99, 2,478.65 and 995.11

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Solution

The fourth proportional to 1,651.99, 2,478.65 and 995.11 is: 1,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.99 : 2,478.65 = 995.11 : x
  2. Step 2: Convert to fraction form
    1,651.99/2,478.65 = 995.11/x
  3. Step 3: Cross multiply
    1,651.99x = 2,478.65 × 995.11
  4. Step 4: Simplify right side
    1,651.99x = 2,466,529.40
  5. Step 5: Solve for x
    x = 2,466,529.40/1,651.99
  6. Step 6: Final answer
    x = 1,493.07

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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.