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Finding the Fourth Proportional to 18,595.71, 27,858.39 and 14,415.23

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Solution

The fourth proportional to 18,595.71, 27,858.39 and 14,415.23 is: 21,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.71 : 27,858.39 = 14,415.23 : x
  2. Step 2: Convert to fraction form
    18,595.71/27,858.39 = 14,415.23/x
  3. Step 3: Cross multiply
    18,595.71x = 27,858.39 × 14,415.23
  4. Step 4: Simplify right side
    18,595.71x = 401,585,274.99
  5. Step 5: Solve for x
    x = 401,585,274.99/18,595.71
  6. Step 6: Final answer
    x = 21,595.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.