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Finding the Fourth Proportional to 27,475.44, 37,915.68 and 15,538.44

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Solution

The fourth proportional to 27,475.44, 37,915.68 and 15,538.44 is: 21,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,475.44 : 37,915.68 = 15,538.44 : x
  2. Step 2: Convert to fraction form
    27,475.44/37,915.68 = 15,538.44/x
  3. Step 3: Cross multiply
    27,475.44x = 37,915.68 × 15,538.44
  4. Step 4: Simplify right side
    27,475.44x = 589,150,518.74
  5. Step 5: Solve for x
    x = 589,150,518.74/27,475.44
  6. Step 6: Final answer
    x = 21,442.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.