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Finding the Fourth Proportional to 62,408.63, 93,612.94 and 20,855.63

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Solution

The fourth proportional to 62,408.63, 93,612.94 and 20,855.63 is: 31,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,408.63 : 93,612.94 = 20,855.63 : x
  2. Step 2: Convert to fraction form
    62,408.63/93,612.94 = 20,855.63/x
  3. Step 3: Cross multiply
    62,408.63x = 93,612.94 × 20,855.63
  4. Step 4: Simplify right side
    62,408.63x = 1,952,356,319.65
  5. Step 5: Solve for x
    x = 1,952,356,319.65/62,408.63
  6. Step 6: Final answer
    x = 31,283.44

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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.