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Finding the Fourth Proportional to 12,073.40, 18,100.38 and 11,101.40

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Solution

The fourth proportional to 12,073.40, 18,100.38 and 11,101.40 is: 16,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.40 : 18,100.38 = 11,101.40 : x
  2. Step 2: Convert to fraction form
    12,073.40/18,100.38 = 11,101.40/x
  3. Step 3: Cross multiply
    12,073.40x = 18,100.38 × 11,101.40
  4. Step 4: Simplify right side
    12,073.40x = 200,939,558.53
  5. Step 5: Solve for x
    x = 200,939,558.53/12,073.40
  6. Step 6: Final answer
    x = 16,643.16

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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.