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Finding the Fourth Proportional to 18,602.79, 25,672.04 and 10,104.99

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Solution

The fourth proportional to 18,602.79, 25,672.04 and 10,104.99 is: 13,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.79 : 25,672.04 = 10,104.99 : x
  2. Step 2: Convert to fraction form
    18,602.79/25,672.04 = 10,104.99/x
  3. Step 3: Cross multiply
    18,602.79x = 25,672.04 × 10,104.99
  4. Step 4: Simplify right side
    18,602.79x = 259,415,707.48
  5. Step 5: Solve for x
    x = 259,415,707.48/18,602.79
  6. Step 6: Final answer
    x = 13,944.99

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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.