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Finding the Fourth Proportional to 20,007.44, 29,990.64 and 7,525.16

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Solution

The fourth proportional to 20,007.44, 29,990.64 and 7,525.16 is: 11,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.44 : 29,990.64 = 7,525.16 : x
  2. Step 2: Convert to fraction form
    20,007.44/29,990.64 = 7,525.16/x
  3. Step 3: Cross multiply
    20,007.44x = 29,990.64 × 7,525.16
  4. Step 4: Simplify right side
    20,007.44x = 225,684,364.50
  5. Step 5: Solve for x
    x = 225,684,364.50/20,007.44
  6. Step 6: Final answer
    x = 11,280.02

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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.