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Finding the Fourth Proportional to 31,360.48, 47,211.84 and 28,604.88

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Solution

The fourth proportional to 31,360.48, 47,211.84 and 28,604.88 is: 43,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,360.48 : 47,211.84 = 28,604.88 : x
  2. Step 2: Convert to fraction form
    31,360.48/47,211.84 = 28,604.88/x
  3. Step 3: Cross multiply
    31,360.48x = 47,211.84 × 28,604.88
  4. Step 4: Simplify right side
    31,360.48x = 1,350,489,017.78
  5. Step 5: Solve for x
    x = 1,350,489,017.78/31,360.48
  6. Step 6: Final answer
    x = 43,063.40

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.