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Finding the Fourth Proportional to 49,875.93, 68,828.79 and 31,970.97

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Solution

The fourth proportional to 49,875.93, 68,828.79 and 31,970.97 is: 44,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,875.93 : 68,828.79 = 31,970.97 : x
  2. Step 2: Convert to fraction form
    49,875.93/68,828.79 = 31,970.97/x
  3. Step 3: Cross multiply
    49,875.93x = 68,828.79 × 31,970.97
  4. Step 4: Simplify right side
    49,875.93x = 2,200,523,020.37
  5. Step 5: Solve for x
    x = 2,200,523,020.37/49,875.93
  6. Step 6: Final answer
    x = 44,119.94

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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.