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Finding the Fourth Proportional to 4,817.88, 7,225.74 and 1,355.40

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Solution

The fourth proportional to 4,817.88, 7,225.74 and 1,355.40 is: 2,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.88 : 7,225.74 = 1,355.40 : x
  2. Step 2: Convert to fraction form
    4,817.88/7,225.74 = 1,355.40/x
  3. Step 3: Cross multiply
    4,817.88x = 7,225.74 × 1,355.40
  4. Step 4: Simplify right side
    4,817.88x = 9,793,768.00
  5. Step 5: Solve for x
    x = 9,793,768.00/4,817.88
  6. Step 6: Final answer
    x = 2,032.80

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