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Finding the Fourth Proportional to 47,855.88, 65,955.06 and 38,932.92

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Solution

The fourth proportional to 47,855.88, 65,955.06 and 38,932.92 is: 53,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,855.88 : 65,955.06 = 38,932.92 : x
  2. Step 2: Convert to fraction form
    47,855.88/65,955.06 = 38,932.92/x
  3. Step 3: Cross multiply
    47,855.88x = 65,955.06 × 38,932.92
  4. Step 4: Simplify right side
    47,855.88x = 2,567,823,074.58
  5. Step 5: Solve for x
    x = 2,567,823,074.58/47,855.88
  6. Step 6: Final answer
    x = 53,657.42

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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.