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Finding the Fourth Proportional to 47,283.67, 70,915.67 and 13,995.92

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Solution

The fourth proportional to 47,283.67, 70,915.67 and 13,995.92 is: 20,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,283.67 : 70,915.67 = 13,995.92 : x
  2. Step 2: Convert to fraction form
    47,283.67/70,915.67 = 13,995.92/x
  3. Step 3: Cross multiply
    47,283.67x = 70,915.67 × 13,995.92
  4. Step 4: Simplify right side
    47,283.67x = 992,529,974.09
  5. Step 5: Solve for x
    x = 992,529,974.09/47,283.67
  6. Step 6: Final answer
    x = 20,990.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.