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Finding the Fourth Proportional to 13,038.68, 17,993.04 and 7,449.68

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Solution

The fourth proportional to 13,038.68, 17,993.04 and 7,449.68 is: 10,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.68 : 17,993.04 = 7,449.68 : x
  2. Step 2: Convert to fraction form
    13,038.68/17,993.04 = 7,449.68/x
  3. Step 3: Cross multiply
    13,038.68x = 17,993.04 × 7,449.68
  4. Step 4: Simplify right side
    13,038.68x = 134,042,390.23
  5. Step 5: Solve for x
    x = 134,042,390.23/13,038.68
  6. Step 6: Final answer
    x = 10,280.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.