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Finding the Fourth Proportional to 11,259.90, 16,893.90 and 4,688.10

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Solution

The fourth proportional to 11,259.90, 16,893.90 and 4,688.10 is: 7,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,259.90 : 16,893.90 = 4,688.10 : x
  2. Step 2: Convert to fraction form
    11,259.90/16,893.90 = 4,688.10/x
  3. Step 3: Cross multiply
    11,259.90x = 16,893.90 × 4,688.10
  4. Step 4: Simplify right side
    11,259.90x = 79,200,292.59
  5. Step 5: Solve for x
    x = 79,200,292.59/11,259.90
  6. Step 6: Final answer
    x = 7,033.84

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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.