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Finding the Fourth Proportional to 38,007.84, 57,020.16 and 13,047.32

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Solution

The fourth proportional to 38,007.84, 57,020.16 and 13,047.32 is: 19,573.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,007.84 : 57,020.16 = 13,047.32 : x
  2. Step 2: Convert to fraction form
    38,007.84/57,020.16 = 13,047.32/x
  3. Step 3: Cross multiply
    38,007.84x = 57,020.16 × 13,047.32
  4. Step 4: Simplify right side
    38,007.84x = 743,960,273.97
  5. Step 5: Solve for x
    x = 743,960,273.97/38,007.84
  6. Step 6: Final answer
    x = 19,573.86

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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.