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Finding the Fourth Proportional to 27,520.51, 37,978.09 and 14,945.35

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Solution

The fourth proportional to 27,520.51, 37,978.09 and 14,945.35 is: 20,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.51 : 37,978.09 = 14,945.35 : x
  2. Step 2: Convert to fraction form
    27,520.51/37,978.09 = 14,945.35/x
  3. Step 3: Cross multiply
    27,520.51x = 37,978.09 × 14,945.35
  4. Step 4: Simplify right side
    27,520.51x = 567,595,847.38
  5. Step 5: Solve for x
    x = 567,595,847.38/27,520.51
  6. Step 6: Final answer
    x = 20,624.47

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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.