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Finding the Fourth Proportional to 18,482.80, 25,497.37 and 12,106.63

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Solution

The fourth proportional to 18,482.80, 25,497.37 and 12,106.63 is: 16,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.80 : 25,497.37 = 12,106.63 : x
  2. Step 2: Convert to fraction form
    18,482.80/25,497.37 = 12,106.63/x
  3. Step 3: Cross multiply
    18,482.80x = 25,497.37 × 12,106.63
  4. Step 4: Simplify right side
    18,482.80x = 308,687,224.56
  5. Step 5: Solve for x
    x = 308,687,224.56/18,482.80
  6. Step 6: Final answer
    x = 16,701.32

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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.