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Finding the Fourth Proportional to 49,555.61, 68,388.81 and 28,334.87

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Solution

The fourth proportional to 49,555.61, 68,388.81 and 28,334.87 is: 39,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,555.61 : 68,388.81 = 28,334.87 : x
  2. Step 2: Convert to fraction form
    49,555.61/68,388.81 = 28,334.87/x
  3. Step 3: Cross multiply
    49,555.61x = 68,388.81 × 28,334.87
  4. Step 4: Simplify right side
    49,555.61x = 1,937,788,040.80
  5. Step 5: Solve for x
    x = 1,937,788,040.80/49,555.61
  6. Step 6: Final answer
    x = 39,103.30

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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.