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Finding the Fourth Proportional to 8,555.49, 12,837.49 and 4,804.94

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Solution

The fourth proportional to 8,555.49, 12,837.49 and 4,804.94 is: 7,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.49 : 12,837.49 = 4,804.94 : x
  2. Step 2: Convert to fraction form
    8,555.49/12,837.49 = 4,804.94/x
  3. Step 3: Cross multiply
    8,555.49x = 12,837.49 × 4,804.94
  4. Step 4: Simplify right side
    8,555.49x = 61,683,369.20
  5. Step 5: Solve for x
    x = 61,683,369.20/8,555.49
  6. Step 6: Final answer
    x = 7,209.80

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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.