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Finding the Fourth Proportional to 20,059.84, 27,683.53 and 12,101.90

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Solution

The fourth proportional to 20,059.84, 27,683.53 and 12,101.90 is: 16,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.84 : 27,683.53 = 12,101.90 : x
  2. Step 2: Convert to fraction form
    20,059.84/27,683.53 = 12,101.90/x
  3. Step 3: Cross multiply
    20,059.84x = 27,683.53 × 12,101.90
  4. Step 4: Simplify right side
    20,059.84x = 335,023,173.29
  5. Step 5: Solve for x
    x = 335,023,173.29/20,059.84
  6. Step 6: Final answer
    x = 16,701.19

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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.