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Finding the Fourth Proportional to 7,040.99, 9,716.22 and 4,016.23

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Solution

The fourth proportional to 7,040.99, 9,716.22 and 4,016.23 is: 5,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.99 : 9,716.22 = 4,016.23 : x
  2. Step 2: Convert to fraction form
    7,040.99/9,716.22 = 4,016.23/x
  3. Step 3: Cross multiply
    7,040.99x = 9,716.22 × 4,016.23
  4. Step 4: Simplify right side
    7,040.99x = 39,022,574.25
  5. Step 5: Solve for x
    x = 39,022,574.25/7,040.99
  6. Step 6: Final answer
    x = 5,542.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.