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Finding the Fourth Proportional to 18,437.24, 27,644.74 and 7,345.64

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Solution

The fourth proportional to 18,437.24, 27,644.74 and 7,345.64 is: 11,014.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.24 : 27,644.74 = 7,345.64 : x
  2. Step 2: Convert to fraction form
    18,437.24/27,644.74 = 7,345.64/x
  3. Step 3: Cross multiply
    18,437.24x = 27,644.74 × 7,345.64
  4. Step 4: Simplify right side
    18,437.24x = 203,068,307.93
  5. Step 5: Solve for x
    x = 203,068,307.93/18,437.24
  6. Step 6: Final answer
    x = 11,014.03

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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.