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Finding the Fourth Proportional to 21,884.61, 30,241.63 and 17,904.27

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Solution

The fourth proportional to 21,884.61, 30,241.63 and 17,904.27 is: 24,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.61 : 30,241.63 = 17,904.27 : x
  2. Step 2: Convert to fraction form
    21,884.61/30,241.63 = 17,904.27/x
  3. Step 3: Cross multiply
    21,884.61x = 30,241.63 × 17,904.27
  4. Step 4: Simplify right side
    21,884.61x = 541,454,308.76
  5. Step 5: Solve for x
    x = 541,454,308.76/21,884.61
  6. Step 6: Final answer
    x = 24,741.33

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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.