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Finding the Fourth Proportional to 7,329, 10,993.32 and 1,782.36

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Solution

The fourth proportional to 7,329, 10,993.32 and 1,782.36 is: 2,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329 : 10,993.32 = 1,782.36 : x
  2. Step 2: Convert to fraction form
    7,329/10,993.32 = 1,782.36/x
  3. Step 3: Cross multiply
    7,329x = 10,993.32 × 1,782.36
  4. Step 4: Simplify right side
    7,329x = 19,594,053.84
  5. Step 5: Solve for x
    x = 19,594,053.84/7,329
  6. Step 6: Final answer
    x = 2,673.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.