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Finding the Fourth Proportional to 49,989.66, 68,985.86 and 27,328.92

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Solution

The fourth proportional to 49,989.66, 68,985.86 and 27,328.92 is: 37,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,989.66 : 68,985.86 = 27,328.92 : x
  2. Step 2: Convert to fraction form
    49,989.66/68,985.86 = 27,328.92/x
  3. Step 3: Cross multiply
    49,989.66x = 68,985.86 × 27,328.92
  4. Step 4: Simplify right side
    49,989.66x = 1,885,309,049.07
  5. Step 5: Solve for x
    x = 1,885,309,049.07/49,989.66
  6. Step 6: Final answer
    x = 37,713.98

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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.