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Finding the Fourth Proportional to 18,590.32, 27,889.53 and 7,497.37

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Solution

The fourth proportional to 18,590.32, 27,889.53 and 7,497.37 is: 11,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.32 : 27,889.53 = 7,497.37 : x
  2. Step 2: Convert to fraction form
    18,590.32/27,889.53 = 7,497.37/x
  3. Step 3: Cross multiply
    18,590.32x = 27,889.53 × 7,497.37
  4. Step 4: Simplify right side
    18,590.32x = 209,098,125.54
  5. Step 5: Solve for x
    x = 209,098,125.54/18,590.32
  6. Step 6: Final answer
    x = 11,247.69

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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.