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Finding the Fourth Proportional to 4,881.14, 7,318.90 and 1,503.05

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Solution

The fourth proportional to 4,881.14, 7,318.90 and 1,503.05 is: 2,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.14 : 7,318.90 = 1,503.05 : x
  2. Step 2: Convert to fraction form
    4,881.14/7,318.90 = 1,503.05/x
  3. Step 3: Cross multiply
    4,881.14x = 7,318.90 × 1,503.05
  4. Step 4: Simplify right side
    4,881.14x = 11,000,687.18
  5. Step 5: Solve for x
    x = 11,000,687.18/4,881.14
  6. Step 6: Final answer
    x = 2,253.72

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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.