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Finding the Fourth Proportional to 13,174.68, 18,168.96 and 10,303.68

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Solution

The fourth proportional to 13,174.68, 18,168.96 and 10,303.68 is: 14,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.68 : 18,168.96 = 10,303.68 : x
  2. Step 2: Convert to fraction form
    13,174.68/18,168.96 = 10,303.68/x
  3. Step 3: Cross multiply
    13,174.68x = 18,168.96 × 10,303.68
  4. Step 4: Simplify right side
    13,174.68x = 187,207,149.77
  5. Step 5: Solve for x
    x = 187,207,149.77/13,174.68
  6. Step 6: Final answer
    x = 14,209.62

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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.