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Finding the Fourth Proportional to 7,382.76, 10,188.16 and 4,025.58

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Solution

The fourth proportional to 7,382.76, 10,188.16 and 4,025.58 is: 5,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.76 : 10,188.16 = 4,025.58 : x
  2. Step 2: Convert to fraction form
    7,382.76/10,188.16 = 4,025.58/x
  3. Step 3: Cross multiply
    7,382.76x = 10,188.16 × 4,025.58
  4. Step 4: Simplify right side
    7,382.76x = 41,013,243.07
  5. Step 5: Solve for x
    x = 41,013,243.07/7,382.76
  6. Step 6: Final answer
    x = 5,555.27

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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.