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Finding the Fourth Proportional to 49,447, 68,239.74 and 28,232.92

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Solution

The fourth proportional to 49,447, 68,239.74 and 28,232.92 is: 38,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,447 : 68,239.74 = 28,232.92 : x
  2. Step 2: Convert to fraction form
    49,447/68,239.74 = 28,232.92/x
  3. Step 3: Cross multiply
    49,447x = 68,239.74 × 28,232.92
  4. Step 4: Simplify right side
    49,447x = 1,926,607,120.24
  5. Step 5: Solve for x
    x = 1,926,607,120.24/49,447
  6. Step 6: Final answer
    x = 38,963.07

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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.