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Finding the Fourth Proportional to 9,328.99, 13,995.57 and 4,945.54

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Solution

The fourth proportional to 9,328.99, 13,995.57 and 4,945.54 is: 7,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.99 : 13,995.57 = 4,945.54 : x
  2. Step 2: Convert to fraction form
    9,328.99/13,995.57 = 4,945.54/x
  3. Step 3: Cross multiply
    9,328.99x = 13,995.57 × 4,945.54
  4. Step 4: Simplify right side
    9,328.99x = 69,215,651.26
  5. Step 5: Solve for x
    x = 69,215,651.26/9,328.99
  6. Step 6: Final answer
    x = 7,419.42

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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.