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Finding the Fourth Proportional to 12,993.73, 19,491.68 and 5,095.67

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Solution

The fourth proportional to 12,993.73, 19,491.68 and 5,095.67 is: 7,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.73 : 19,491.68 = 5,095.67 : x
  2. Step 2: Convert to fraction form
    12,993.73/19,491.68 = 5,095.67/x
  3. Step 3: Cross multiply
    12,993.73x = 19,491.68 × 5,095.67
  4. Step 4: Simplify right side
    12,993.73x = 99,323,117.20
  5. Step 5: Solve for x
    x = 99,323,117.20/12,993.73
  6. Step 6: Final answer
    x = 7,643.93

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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.