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Finding the Fourth Proportional to 7,018.12, 9,688.52 and 4,366.38

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Solution

The fourth proportional to 7,018.12, 9,688.52 and 4,366.38 is: 6,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.12 : 9,688.52 = 4,366.38 : x
  2. Step 2: Convert to fraction form
    7,018.12/9,688.52 = 4,366.38/x
  3. Step 3: Cross multiply
    7,018.12x = 9,688.52 × 4,366.38
  4. Step 4: Simplify right side
    7,018.12x = 42,303,759.96
  5. Step 5: Solve for x
    x = 42,303,759.96/7,018.12
  6. Step 6: Final answer
    x = 6,027.79

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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.