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Finding the Fourth Proportional to 36,570.69, 54,856.04 and 12,872.66

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Solution

The fourth proportional to 36,570.69, 54,856.04 and 12,872.66 is: 19,308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,570.69 : 54,856.04 = 12,872.66 : x
  2. Step 2: Convert to fraction form
    36,570.69/54,856.04 = 12,872.66/x
  3. Step 3: Cross multiply
    36,570.69x = 54,856.04 × 12,872.66
  4. Step 4: Simplify right side
    36,570.69x = 706,142,813.22
  5. Step 5: Solve for x
    x = 706,142,813.22/36,570.69
  6. Step 6: Final answer
    x = 19,308.98

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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.