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Finding the Fourth Proportional to 7,903.53, 11,858.36 and 5,654.61

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Solution

The fourth proportional to 7,903.53, 11,858.36 and 5,654.61 is: 8,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.53 : 11,858.36 = 5,654.61 : x
  2. Step 2: Convert to fraction form
    7,903.53/11,858.36 = 5,654.61/x
  3. Step 3: Cross multiply
    7,903.53x = 11,858.36 × 5,654.61
  4. Step 4: Simplify right side
    7,903.53x = 67,054,372.77
  5. Step 5: Solve for x
    x = 67,054,372.77/7,903.53
  6. Step 6: Final answer
    x = 8,484.10

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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.