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Finding the Fourth Proportional to 18,295.76, 25,234.80 and 11,582.48

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Solution

The fourth proportional to 18,295.76, 25,234.80 and 11,582.48 is: 15,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.76 : 25,234.80 = 11,582.48 : x
  2. Step 2: Convert to fraction form
    18,295.76/25,234.80 = 11,582.48/x
  3. Step 3: Cross multiply
    18,295.76x = 25,234.80 × 11,582.48
  4. Step 4: Simplify right side
    18,295.76x = 292,281,566.30
  5. Step 5: Solve for x
    x = 292,281,566.30/18,295.76
  6. Step 6: Final answer
    x = 15,975.37

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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.