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Finding the Fourth Proportional to 7,104.54, 9,804.22 and 4,122.10

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Solution

The fourth proportional to 7,104.54, 9,804.22 and 4,122.10 is: 5,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.54 : 9,804.22 = 4,122.10 : x
  2. Step 2: Convert to fraction form
    7,104.54/9,804.22 = 4,122.10/x
  3. Step 3: Cross multiply
    7,104.54x = 9,804.22 × 4,122.10
  4. Step 4: Simplify right side
    7,104.54x = 40,413,975.26
  5. Step 5: Solve for x
    x = 40,413,975.26/7,104.54
  6. Step 6: Final answer
    x = 5,688.47

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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.