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Finding the Fourth Proportional to 18,291.78, 27,437.67 and 6,605.01

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Solution

The fourth proportional to 18,291.78, 27,437.67 and 6,605.01 is: 9,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.78 : 27,437.67 = 6,605.01 : x
  2. Step 2: Convert to fraction form
    18,291.78/27,437.67 = 6,605.01/x
  3. Step 3: Cross multiply
    18,291.78x = 27,437.67 × 6,605.01
  4. Step 4: Simplify right side
    18,291.78x = 181,226,084.73
  5. Step 5: Solve for x
    x = 181,226,084.73/18,291.78
  6. Step 6: Final answer
    x = 9,907.52

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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.