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Finding the Fourth Proportional to 14,751.93, 20,362.91 and 13,177.29

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Solution

The fourth proportional to 14,751.93, 20,362.91 and 13,177.29 is: 18,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,751.93 : 20,362.91 = 13,177.29 : x
  2. Step 2: Convert to fraction form
    14,751.93/20,362.91 = 13,177.29/x
  3. Step 3: Cross multiply
    14,751.93x = 20,362.91 × 13,177.29
  4. Step 4: Simplify right side
    14,751.93x = 268,327,904.43
  5. Step 5: Solve for x
    x = 268,327,904.43/14,751.93
  6. Step 6: Final answer
    x = 18,189.34

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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.