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Finding the Fourth Proportional to 17,891.60, 24,693.90 and 11,427.08

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Solution

The fourth proportional to 17,891.60, 24,693.90 and 11,427.08 is: 15,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.60 : 24,693.90 = 11,427.08 : x
  2. Step 2: Convert to fraction form
    17,891.60/24,693.90 = 11,427.08/x
  3. Step 3: Cross multiply
    17,891.60x = 24,693.90 × 11,427.08
  4. Step 4: Simplify right side
    17,891.60x = 282,179,170.81
  5. Step 5: Solve for x
    x = 282,179,170.81/17,891.60
  6. Step 6: Final answer
    x = 15,771.60

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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.