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Finding the Fourth Proportional to 38,672.60, 53,393.90 and 29,704.07

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Solution

The fourth proportional to 38,672.60, 53,393.90 and 29,704.07 is: 41,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.60 : 53,393.90 = 29,704.07 : x
  2. Step 2: Convert to fraction form
    38,672.60/53,393.90 = 29,704.07/x
  3. Step 3: Cross multiply
    38,672.60x = 53,393.90 × 29,704.07
  4. Step 4: Simplify right side
    38,672.60x = 1,586,016,143.17
  5. Step 5: Solve for x
    x = 1,586,016,143.17/38,672.60
  6. Step 6: Final answer
    x = 41,011.37

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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.