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Finding the Fourth Proportional to 18,901.69, 28,352.53 and 5,050.69

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Solution

The fourth proportional to 18,901.69, 28,352.53 and 5,050.69 is: 7,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.69 : 28,352.53 = 5,050.69 : x
  2. Step 2: Convert to fraction form
    18,901.69/28,352.53 = 5,050.69/x
  3. Step 3: Cross multiply
    18,901.69x = 28,352.53 × 5,050.69
  4. Step 4: Simplify right side
    18,901.69x = 143,199,775.18
  5. Step 5: Solve for x
    x = 143,199,775.18/18,901.69
  6. Step 6: Final answer
    x = 7,576.03

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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.