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Finding the Fourth Proportional to 18,073.45, 27,105.80 and 6,973.05

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Solution

The fourth proportional to 18,073.45, 27,105.80 and 6,973.05 is: 10,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,073.45 : 27,105.80 = 6,973.05 : x
  2. Step 2: Convert to fraction form
    18,073.45/27,105.80 = 6,973.05/x
  3. Step 3: Cross multiply
    18,073.45x = 27,105.80 × 6,973.05
  4. Step 4: Simplify right side
    18,073.45x = 189,010,214.50
  5. Step 5: Solve for x
    x = 189,010,214.50/18,073.45
  6. Step 6: Final answer
    x = 10,457.90

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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.