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Finding the Fourth Proportional to 38,157.80, 57,216.86 and 14,791.08

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Solution

The fourth proportional to 38,157.80, 57,216.86 and 14,791.08 is: 22,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.80 : 57,216.86 = 14,791.08 : x
  2. Step 2: Convert to fraction form
    38,157.80/57,216.86 = 14,791.08/x
  3. Step 3: Cross multiply
    38,157.80x = 57,216.86 × 14,791.08
  4. Step 4: Simplify right side
    38,157.80x = 846,299,153.61
  5. Step 5: Solve for x
    x = 846,299,153.61/38,157.80
  6. Step 6: Final answer
    x = 22,178.93

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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.