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Finding the Fourth Proportional to 12,607.53, 18,902.53 and 5,583.71

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Solution

The fourth proportional to 12,607.53, 18,902.53 and 5,583.71 is: 8,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.53 : 18,902.53 = 5,583.71 : x
  2. Step 2: Convert to fraction form
    12,607.53/18,902.53 = 5,583.71/x
  3. Step 3: Cross multiply
    12,607.53x = 18,902.53 × 5,583.71
  4. Step 4: Simplify right side
    12,607.53x = 105,546,245.79
  5. Step 5: Solve for x
    x = 105,546,245.79/12,607.53
  6. Step 6: Final answer
    x = 8,371.69

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1.5x scale

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.