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Finding the Fourth Proportional to 16,708.50, 25,063.06 and 7,818.90

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Solution

The fourth proportional to 16,708.50, 25,063.06 and 7,818.90 is: 11,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,708.50 : 25,063.06 = 7,818.90 : x
  2. Step 2: Convert to fraction form
    16,708.50/25,063.06 = 7,818.90/x
  3. Step 3: Cross multiply
    16,708.50x = 25,063.06 × 7,818.90
  4. Step 4: Simplify right side
    16,708.50x = 195,965,559.83
  5. Step 5: Solve for x
    x = 195,965,559.83/16,708.50
  6. Step 6: Final answer
    x = 11,728.50

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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.