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Finding the Fourth Proportional to 12,073.14, 18,109.98 and 9,612.90

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Solution

The fourth proportional to 12,073.14, 18,109.98 and 9,612.90 is: 14,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.14 : 18,109.98 = 9,612.90 : x
  2. Step 2: Convert to fraction form
    12,073.14/18,109.98 = 9,612.90/x
  3. Step 3: Cross multiply
    12,073.14x = 18,109.98 × 9,612.90
  4. Step 4: Simplify right side
    12,073.14x = 174,089,426.74
  5. Step 5: Solve for x
    x = 174,089,426.74/12,073.14
  6. Step 6: Final answer
    x = 14,419.56

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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.