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Finding the Fourth Proportional to 7,352.22, 10,146.15 and 4,040.22

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Solution

The fourth proportional to 7,352.22, 10,146.15 and 4,040.22 is: 5,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.22 : 10,146.15 = 4,040.22 : x
  2. Step 2: Convert to fraction form
    7,352.22/10,146.15 = 4,040.22/x
  3. Step 3: Cross multiply
    7,352.22x = 10,146.15 × 4,040.22
  4. Step 4: Simplify right side
    7,352.22x = 40,992,678.15
  5. Step 5: Solve for x
    x = 40,992,678.15/7,352.22
  6. Step 6: Final answer
    x = 5,575.55

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Half scale
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Double scale
Find fourth proportional to 7,353.22, 10,147.53 and 4,041.22
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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.