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Finding the Fourth Proportional to 47,946.70, 71,920.05 and 16,785.10

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Solution

The fourth proportional to 47,946.70, 71,920.05 and 16,785.10 is: 25,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,946.70 : 71,920.05 = 16,785.10 : x
  2. Step 2: Convert to fraction form
    47,946.70/71,920.05 = 16,785.10/x
  3. Step 3: Cross multiply
    47,946.70x = 71,920.05 × 16,785.10
  4. Step 4: Simplify right side
    47,946.70x = 1,207,185,231.26
  5. Step 5: Solve for x
    x = 1,207,185,231.26/47,946.70
  6. Step 6: Final answer
    x = 25,177.65

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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.