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Finding the Fourth Proportional to 36,086.40, 54,129.60 and 25,005.60

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Solution

The fourth proportional to 36,086.40, 54,129.60 and 25,005.60 is: 37,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,086.40 : 54,129.60 = 25,005.60 : x
  2. Step 2: Convert to fraction form
    36,086.40/54,129.60 = 25,005.60/x
  3. Step 3: Cross multiply
    36,086.40x = 54,129.60 × 25,005.60
  4. Step 4: Simplify right side
    36,086.40x = 1,353,543,125.76
  5. Step 5: Solve for x
    x = 1,353,543,125.76/36,086.40
  6. Step 6: Final answer
    x = 37,508.40

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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.