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Finding the Fourth Proportional to 9,065.68, 13,603.91 and 4,905.60

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Solution

The fourth proportional to 9,065.68, 13,603.91 and 4,905.60 is: 7,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,065.68 : 13,603.91 = 4,905.60 : x
  2. Step 2: Convert to fraction form
    9,065.68/13,603.91 = 4,905.60/x
  3. Step 3: Cross multiply
    9,065.68x = 13,603.91 × 4,905.60
  4. Step 4: Simplify right side
    9,065.68x = 66,735,316.37
  5. Step 5: Solve for x
    x = 66,735,316.37/9,065.68
  6. Step 6: Final answer
    x = 7,361.32

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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.