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Finding the Fourth Proportional to 3,483.99, 5,225.96 and 851.51

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Solution

The fourth proportional to 3,483.99, 5,225.96 and 851.51 is: 1,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.99 : 5,225.96 = 851.51 : x
  2. Step 2: Convert to fraction form
    3,483.99/5,225.96 = 851.51/x
  3. Step 3: Cross multiply
    3,483.99x = 5,225.96 × 851.51
  4. Step 4: Simplify right side
    3,483.99x = 4,449,933.20
  5. Step 5: Solve for x
    x = 4,449,933.20/3,483.99
  6. Step 6: Final answer
    x = 1,277.25

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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.