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Finding the Fourth Proportional to 16,651.44, 22,978.30 and 9,482.32

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Solution

The fourth proportional to 16,651.44, 22,978.30 and 9,482.32 is: 13,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.44 : 22,978.30 = 9,482.32 : x
  2. Step 2: Convert to fraction form
    16,651.44/22,978.30 = 9,482.32/x
  3. Step 3: Cross multiply
    16,651.44x = 22,978.30 × 9,482.32
  4. Step 4: Simplify right side
    16,651.44x = 217,887,593.66
  5. Step 5: Solve for x
    x = 217,887,593.66/16,651.44
  6. Step 6: Final answer
    x = 13,085.21

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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.