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Finding the Fourth Proportional to 18,588.40, 25,650.24 and 11,033.40

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Solution

The fourth proportional to 18,588.40, 25,650.24 and 11,033.40 is: 15,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.40 : 25,650.24 = 11,033.40 : x
  2. Step 2: Convert to fraction form
    18,588.40/25,650.24 = 11,033.40/x
  3. Step 3: Cross multiply
    18,588.40x = 25,650.24 × 11,033.40
  4. Step 4: Simplify right side
    18,588.40x = 283,009,358.02
  5. Step 5: Solve for x
    x = 283,009,358.02/18,588.40
  6. Step 6: Final answer
    x = 15,225.05

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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.