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Finding the Fourth Proportional to 7,025.88, 10,530.62 and 3,905.16

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Solution

The fourth proportional to 7,025.88, 10,530.62 and 3,905.16 is: 5,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.88 : 10,530.62 = 3,905.16 : x
  2. Step 2: Convert to fraction form
    7,025.88/10,530.62 = 3,905.16/x
  3. Step 3: Cross multiply
    7,025.88x = 10,530.62 × 3,905.16
  4. Step 4: Simplify right side
    7,025.88x = 41,123,756.00
  5. Step 5: Solve for x
    x = 41,123,756.00/7,025.88
  6. Step 6: Final answer
    x = 5,853.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.