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Finding the Fourth Proportional to 7,012.54, 10,521.64 and 6,901.98

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Solution

The fourth proportional to 7,012.54, 10,521.64 and 6,901.98 is: 10,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.54 : 10,521.64 = 6,901.98 : x
  2. Step 2: Convert to fraction form
    7,012.54/10,521.64 = 6,901.98/x
  3. Step 3: Cross multiply
    7,012.54x = 10,521.64 × 6,901.98
  4. Step 4: Simplify right side
    7,012.54x = 72,620,148.85
  5. Step 5: Solve for x
    x = 72,620,148.85/7,012.54
  6. Step 6: Final answer
    x = 10,355.76

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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.