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Finding the Fourth Proportional to 15,653.69, 23,490.72 and 6,777.69

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Solution

The fourth proportional to 15,653.69, 23,490.72 and 6,777.69 is: 10,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.69 : 23,490.72 = 6,777.69 : x
  2. Step 2: Convert to fraction form
    15,653.69/23,490.72 = 6,777.69/x
  3. Step 3: Cross multiply
    15,653.69x = 23,490.72 × 6,777.69
  4. Step 4: Simplify right side
    15,653.69x = 159,212,729.62
  5. Step 5: Solve for x
    x = 159,212,729.62/15,653.69
  6. Step 6: Final answer
    x = 10,170.94

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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.