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Finding the Fourth Proportional to 18,368.20, 27,533.10 and 10,035.40

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Solution

The fourth proportional to 18,368.20, 27,533.10 and 10,035.40 is: 15,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.20 : 27,533.10 = 10,035.40 : x
  2. Step 2: Convert to fraction form
    18,368.20/27,533.10 = 10,035.40/x
  3. Step 3: Cross multiply
    18,368.20x = 27,533.10 × 10,035.40
  4. Step 4: Simplify right side
    18,368.20x = 276,305,671.74
  5. Step 5: Solve for x
    x = 276,305,671.74/18,368.20
  6. Step 6: Final answer
    x = 15,042.61

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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.