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Finding the Fourth Proportional to 38,896.61, 53,676.88 and 22,980.71

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Solution

The fourth proportional to 38,896.61, 53,676.88 and 22,980.71 is: 31,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.61 : 53,676.88 = 22,980.71 : x
  2. Step 2: Convert to fraction form
    38,896.61/53,676.88 = 22,980.71/x
  3. Step 3: Cross multiply
    38,896.61x = 53,676.88 × 22,980.71
  4. Step 4: Simplify right side
    38,896.61x = 1,233,532,889.73
  5. Step 5: Solve for x
    x = 1,233,532,889.73/38,896.61
  6. Step 6: Final answer
    x = 31,713.12

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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.