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Finding the Fourth Proportional to 18,677.48, 25,799.48 and 13,953.56

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Solution

The fourth proportional to 18,677.48, 25,799.48 and 13,953.56 is: 19,274.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.48 : 25,799.48 = 13,953.56 : x
  2. Step 2: Convert to fraction form
    18,677.48/25,799.48 = 13,953.56/x
  3. Step 3: Cross multiply
    18,677.48x = 25,799.48 × 13,953.56
  4. Step 4: Simplify right side
    18,677.48x = 359,994,592.15
  5. Step 5: Solve for x
    x = 359,994,592.15/18,677.48
  6. Step 6: Final answer
    x = 19,274.26

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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.