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Finding the Fourth Proportional to 17,376.82, 23,980.14 and 9,419.10

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Solution

The fourth proportional to 17,376.82, 23,980.14 and 9,419.10 is: 12,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.82 : 23,980.14 = 9,419.10 : x
  2. Step 2: Convert to fraction form
    17,376.82/23,980.14 = 9,419.10/x
  3. Step 3: Cross multiply
    17,376.82x = 23,980.14 × 9,419.10
  4. Step 4: Simplify right side
    17,376.82x = 225,871,289.58
  5. Step 5: Solve for x
    x = 225,871,289.58/17,376.82
  6. Step 6: Final answer
    x = 12,998.43

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Double scale
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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.