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Finding the Fourth Proportional to 53,177.51, 79,760.07 and 13,731.51

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Solution

The fourth proportional to 53,177.51, 79,760.07 and 13,731.51 is: 20,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.51 : 79,760.07 = 13,731.51 : x
  2. Step 2: Convert to fraction form
    53,177.51/79,760.07 = 13,731.51/x
  3. Step 3: Cross multiply
    53,177.51x = 79,760.07 × 13,731.51
  4. Step 4: Simplify right side
    53,177.51x = 1,095,226,198.81
  5. Step 5: Solve for x
    x = 1,095,226,198.81/53,177.51
  6. Step 6: Final answer
    x = 20,595.67

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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.