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Finding the Fourth Proportional to 51,992.65, 71,749.85 and 28,119.32

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Solution

The fourth proportional to 51,992.65, 71,749.85 and 28,119.32 is: 38,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,992.65 : 71,749.85 = 28,119.32 : x
  2. Step 2: Convert to fraction form
    51,992.65/71,749.85 = 28,119.32/x
  3. Step 3: Cross multiply
    51,992.65x = 71,749.85 × 28,119.32
  4. Step 4: Simplify right side
    51,992.65x = 2,017,556,950.67
  5. Step 5: Solve for x
    x = 2,017,556,950.67/51,992.65
  6. Step 6: Final answer
    x = 38,804.66

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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.