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Finding the Fourth Proportional to 19,242.76, 28,840.92 and 9,367.24

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Solution

The fourth proportional to 19,242.76, 28,840.92 and 9,367.24 is: 14,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.76 : 28,840.92 = 9,367.24 : x
  2. Step 2: Convert to fraction form
    19,242.76/28,840.92 = 9,367.24/x
  3. Step 3: Cross multiply
    19,242.76x = 28,840.92 × 9,367.24
  4. Step 4: Simplify right side
    19,242.76x = 270,159,819.46
  5. Step 5: Solve for x
    x = 270,159,819.46/19,242.76
  6. Step 6: Final answer
    x = 14,039.56

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1.5x scale

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.