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Finding the Fourth Proportional to 6,798.51, 9,378.16 and 4,279.69

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Solution

The fourth proportional to 6,798.51, 9,378.16 and 4,279.69 is: 5,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,798.51 : 9,378.16 = 4,279.69 : x
  2. Step 2: Convert to fraction form
    6,798.51/9,378.16 = 4,279.69/x
  3. Step 3: Cross multiply
    6,798.51x = 9,378.16 × 4,279.69
  4. Step 4: Simplify right side
    6,798.51x = 40,135,617.57
  5. Step 5: Solve for x
    x = 40,135,617.57/6,798.51
  6. Step 6: Final answer
    x = 5,903.59

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Half scale
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Double scale
Find fourth proportional to 6,799.51, 9,379.54 and 4,280.69
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.