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Finding the Fourth Proportional to 5,555.19, 7,661.19 and 4,609.47

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Solution

The fourth proportional to 5,555.19, 7,661.19 and 4,609.47 is: 6,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.19 : 7,661.19 = 4,609.47 : x
  2. Step 2: Convert to fraction form
    5,555.19/7,661.19 = 4,609.47/x
  3. Step 3: Cross multiply
    5,555.19x = 7,661.19 × 4,609.47
  4. Step 4: Simplify right side
    5,555.19x = 35,314,025.47
  5. Step 5: Solve for x
    x = 35,314,025.47/5,555.19
  6. Step 6: Final answer
    x = 6,356.94

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Half scale
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Double scale
Find fourth proportional to 5,556.19, 7,662.57 and 4,610.47
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.