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Finding the Fourth Proportional to 3,263.88, 4,891.06 and 1,509.42

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Solution

The fourth proportional to 3,263.88, 4,891.06 and 1,509.42 is: 2,261.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263.88 : 4,891.06 = 1,509.42 : x
  2. Step 2: Convert to fraction form
    3,263.88/4,891.06 = 1,509.42/x
  3. Step 3: Cross multiply
    3,263.88x = 4,891.06 × 1,509.42
  4. Step 4: Simplify right side
    3,263.88x = 7,382,663.79
  5. Step 5: Solve for x
    x = 7,382,663.79/3,263.88
  6. Step 6: Final answer
    x = 2,261.93

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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.