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Finding the Fourth Proportional to 18,159.80, 25,063.44 and 16,973.96

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Solution

The fourth proportional to 18,159.80, 25,063.44 and 16,973.96 is: 23,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.80 : 25,063.44 = 16,973.96 : x
  2. Step 2: Convert to fraction form
    18,159.80/25,063.44 = 16,973.96/x
  3. Step 3: Cross multiply
    18,159.80x = 25,063.44 × 16,973.96
  4. Step 4: Simplify right side
    18,159.80x = 425,425,828.02
  5. Step 5: Solve for x
    x = 425,425,828.02/18,159.80
  6. Step 6: Final answer
    x = 23,426.79

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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.