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Finding the Fourth Proportional to 16,285.80, 24,409.80 and 7,521.60

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Solution

The fourth proportional to 16,285.80, 24,409.80 and 7,521.60 is: 11,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,285.80 : 24,409.80 = 7,521.60 : x
  2. Step 2: Convert to fraction form
    16,285.80/24,409.80 = 7,521.60/x
  3. Step 3: Cross multiply
    16,285.80x = 24,409.80 × 7,521.60
  4. Step 4: Simplify right side
    16,285.80x = 183,600,751.68
  5. Step 5: Solve for x
    x = 183,600,751.68/16,285.80
  6. Step 6: Final answer
    x = 11,273.67

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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.