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Finding the Fourth Proportional to 18,891.51, 26,056.13 and 18,053.97

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Solution

The fourth proportional to 18,891.51, 26,056.13 and 18,053.97 is: 24,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.51 : 26,056.13 = 18,053.97 : x
  2. Step 2: Convert to fraction form
    18,891.51/26,056.13 = 18,053.97/x
  3. Step 3: Cross multiply
    18,891.51x = 26,056.13 × 18,053.97
  4. Step 4: Simplify right side
    18,891.51x = 470,416,499.07
  5. Step 5: Solve for x
    x = 470,416,499.07/18,891.51
  6. Step 6: Final answer
    x = 24,900.95

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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.