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Finding the Fourth Proportional to 18,746.92, 28,245.49 and 16,970.23

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Solution

The fourth proportional to 18,746.92, 28,245.49 and 16,970.23 is: 25,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.92 : 28,245.49 = 16,970.23 : x
  2. Step 2: Convert to fraction form
    18,746.92/28,245.49 = 16,970.23/x
  3. Step 3: Cross multiply
    18,746.92x = 28,245.49 × 16,970.23
  4. Step 4: Simplify right side
    18,746.92x = 479,332,461.76
  5. Step 5: Solve for x
    x = 479,332,461.76/18,746.92
  6. Step 6: Final answer
    x = 25,568.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.