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Finding the Fourth Proportional to 18,576.89, 27,866.25 and 7,482.08

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Solution

The fourth proportional to 18,576.89, 27,866.25 and 7,482.08 is: 11,223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.89 : 27,866.25 = 7,482.08 : x
  2. Step 2: Convert to fraction form
    18,576.89/27,866.25 = 7,482.08/x
  3. Step 3: Cross multiply
    18,576.89x = 27,866.25 × 7,482.08
  4. Step 4: Simplify right side
    18,576.89x = 208,497,641.70
  5. Step 5: Solve for x
    x = 208,497,641.70/18,576.89
  6. Step 6: Final answer
    x = 11,223.49

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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.