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Finding the Fourth Proportional to 18,302.94, 25,254.02 and 11,928.96

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Solution

The fourth proportional to 18,302.94, 25,254.02 and 11,928.96 is: 16,459.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.94 : 25,254.02 = 11,928.96 : x
  2. Step 2: Convert to fraction form
    18,302.94/25,254.02 = 11,928.96/x
  3. Step 3: Cross multiply
    18,302.94x = 25,254.02 × 11,928.96
  4. Step 4: Simplify right side
    18,302.94x = 301,254,134.77
  5. Step 5: Solve for x
    x = 301,254,134.77/18,302.94
  6. Step 6: Final answer
    x = 16,459.33

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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.