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Finding the Fourth Proportional to 49,875, 68,836.40 and 29,733.20

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Solution

The fourth proportional to 49,875, 68,836.40 and 29,733.20 is: 41,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,875 : 68,836.40 = 29,733.20 : x
  2. Step 2: Convert to fraction form
    49,875/68,836.40 = 29,733.20/x
  3. Step 3: Cross multiply
    49,875x = 68,836.40 × 29,733.20
  4. Step 4: Simplify right side
    49,875x = 2,046,726,448.48
  5. Step 5: Solve for x
    x = 2,046,726,448.48/49,875
  6. Step 6: Final answer
    x = 41,037.12

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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.