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Finding the Fourth Proportional to 18,903.76, 28,373.15 and 9,550.37

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Solution

The fourth proportional to 18,903.76, 28,373.15 and 9,550.37 is: 14,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.76 : 28,373.15 = 9,550.37 : x
  2. Step 2: Convert to fraction form
    18,903.76/28,373.15 = 9,550.37/x
  3. Step 3: Cross multiply
    18,903.76x = 28,373.15 × 9,550.37
  4. Step 4: Simplify right side
    18,903.76x = 270,973,926.76
  5. Step 5: Solve for x
    x = 270,973,926.76/18,903.76
  6. Step 6: Final answer
    x = 14,334.39

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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.