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Finding the Fourth Proportional to 18,287.54, 27,442.79 and 7,193.93

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Solution

The fourth proportional to 18,287.54, 27,442.79 and 7,193.93 is: 10,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.54 : 27,442.79 = 7,193.93 : x
  2. Step 2: Convert to fraction form
    18,287.54/27,442.79 = 7,193.93/x
  3. Step 3: Cross multiply
    18,287.54x = 27,442.79 × 7,193.93
  4. Step 4: Simplify right side
    18,287.54x = 197,421,510.26
  5. Step 5: Solve for x
    x = 197,421,510.26/18,287.54
  6. Step 6: Final answer
    x = 10,795.41

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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.