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Finding the Fourth Proportional to 7,258.19, 10,016.42 and 4,072.19

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Solution

The fourth proportional to 7,258.19, 10,016.42 and 4,072.19 is: 5,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.19 : 10,016.42 = 4,072.19 : x
  2. Step 2: Convert to fraction form
    7,258.19/10,016.42 = 4,072.19/x
  3. Step 3: Cross multiply
    7,258.19x = 10,016.42 × 4,072.19
  4. Step 4: Simplify right side
    7,258.19x = 40,788,765.36
  5. Step 5: Solve for x
    x = 40,788,765.36/7,258.19
  6. Step 6: Final answer
    x = 5,619.69

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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.