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Finding the Fourth Proportional to 62,764.80, 94,300.80 and 47,212.80

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Solution

The fourth proportional to 62,764.80, 94,300.80 and 47,212.80 is: 70,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,764.80 : 94,300.80 = 47,212.80 : x
  2. Step 2: Convert to fraction form
    62,764.80/94,300.80 = 47,212.80/x
  3. Step 3: Cross multiply
    62,764.80x = 94,300.80 × 47,212.80
  4. Step 4: Simplify right side
    62,764.80x = 4,452,204,810.24
  5. Step 5: Solve for x
    x = 4,452,204,810.24/62,764.80
  6. Step 6: Final answer
    x = 70,934.74

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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.