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Finding the Fourth Proportional to 17,653.21, 26,477.01 and 5,170.30

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Solution

The fourth proportional to 17,653.21, 26,477.01 and 5,170.30 is: 7,754.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.21 : 26,477.01 = 5,170.30 : x
  2. Step 2: Convert to fraction form
    17,653.21/26,477.01 = 5,170.30/x
  3. Step 3: Cross multiply
    17,653.21x = 26,477.01 × 5,170.30
  4. Step 4: Simplify right side
    17,653.21x = 136,894,018.61
  5. Step 5: Solve for x
    x = 136,894,018.61/17,653.21
  6. Step 6: Final answer
    x = 7,754.63

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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.