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Finding the Fourth Proportional to 19,043.65, 28,576.28 and 7,357.69

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Solution

The fourth proportional to 19,043.65, 28,576.28 and 7,357.69 is: 11,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,043.65 : 28,576.28 = 7,357.69 : x
  2. Step 2: Convert to fraction form
    19,043.65/28,576.28 = 7,357.69/x
  3. Step 3: Cross multiply
    19,043.65x = 28,576.28 × 7,357.69
  4. Step 4: Simplify right side
    19,043.65x = 210,255,409.59
  5. Step 5: Solve for x
    x = 210,255,409.59/19,043.65
  6. Step 6: Final answer
    x = 11,040.71

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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.