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Finding the Fourth Proportional to 31,303.26, 46,950.84 and 7,928.28

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Solution

The fourth proportional to 31,303.26, 46,950.84 and 7,928.28 is: 11,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,303.26 : 46,950.84 = 7,928.28 : x
  2. Step 2: Convert to fraction form
    31,303.26/46,950.84 = 7,928.28/x
  3. Step 3: Cross multiply
    31,303.26x = 46,950.84 × 7,928.28
  4. Step 4: Simplify right side
    31,303.26x = 372,239,405.76
  5. Step 5: Solve for x
    x = 372,239,405.76/31,303.26
  6. Step 6: Final answer
    x = 11,891.39

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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.