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Finding the Fourth Proportional to 67,483.64, 93,138.83 and 39,205.74

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Solution

The fourth proportional to 67,483.64, 93,138.83 and 39,205.74 is: 54,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,483.64 : 93,138.83 = 39,205.74 : x
  2. Step 2: Convert to fraction form
    67,483.64/93,138.83 = 39,205.74/x
  3. Step 3: Cross multiply
    67,483.64x = 93,138.83 × 39,205.74
  4. Step 4: Simplify right side
    67,483.64x = 3,651,576,752.88
  5. Step 5: Solve for x
    x = 3,651,576,752.88/67,483.64
  6. Step 6: Final answer
    x = 54,110.55

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1.5x scale

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.