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Finding the Fourth Proportional to 7,325.80, 10,120.02 and 5,907.40

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Solution

The fourth proportional to 7,325.80, 10,120.02 and 5,907.40 is: 8,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.80 : 10,120.02 = 5,907.40 : x
  2. Step 2: Convert to fraction form
    7,325.80/10,120.02 = 5,907.40/x
  3. Step 3: Cross multiply
    7,325.80x = 10,120.02 × 5,907.40
  4. Step 4: Simplify right side
    7,325.80x = 59,783,006.15
  5. Step 5: Solve for x
    x = 59,783,006.15/7,325.80
  6. Step 6: Final answer
    x = 8,160.61

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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.