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Finding the Fourth Proportional to 21,803.16, 32,719.26 and 7,952.16

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Solution

The fourth proportional to 21,803.16, 32,719.26 and 7,952.16 is: 11,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803.16 : 32,719.26 = 7,952.16 : x
  2. Step 2: Convert to fraction form
    21,803.16/32,719.26 = 7,952.16/x
  3. Step 3: Cross multiply
    21,803.16x = 32,719.26 × 7,952.16
  4. Step 4: Simplify right side
    21,803.16x = 260,188,790.60
  5. Step 5: Solve for x
    x = 260,188,790.60/21,803.16
  6. Step 6: Final answer
    x = 11,933.54

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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.