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Finding the Fourth Proportional to 51,597.68, 71,205.60 and 28,941.70

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Solution

The fourth proportional to 51,597.68, 71,205.60 and 28,941.70 is: 39,940.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,597.68 : 71,205.60 = 28,941.70 : x
  2. Step 2: Convert to fraction form
    51,597.68/71,205.60 = 28,941.70/x
  3. Step 3: Cross multiply
    51,597.68x = 71,205.60 × 28,941.70
  4. Step 4: Simplify right side
    51,597.68x = 2,060,811,113.52
  5. Step 5: Solve for x
    x = 2,060,811,113.52/51,597.68
  6. Step 6: Final answer
    x = 39,940.00

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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.