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Finding the Fourth Proportional to 52,957.80, 79,364.61 and 26,680.59

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Solution

The fourth proportional to 52,957.80, 79,364.61 and 26,680.59 is: 39,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,957.80 : 79,364.61 = 26,680.59 : x
  2. Step 2: Convert to fraction form
    52,957.80/79,364.61 = 26,680.59/x
  3. Step 3: Cross multiply
    52,957.80x = 79,364.61 × 26,680.59
  4. Step 4: Simplify right side
    52,957.80x = 2,117,494,619.92
  5. Step 5: Solve for x
    x = 2,117,494,619.92/52,957.80
  6. Step 6: Final answer
    x = 39,984.57

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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.