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Finding the Fourth Proportional to 14,552.28, 20,082.12 and 7,928.28

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Solution

The fourth proportional to 14,552.28, 20,082.12 and 7,928.28 is: 10,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,552.28 : 20,082.12 = 7,928.28 : x
  2. Step 2: Convert to fraction form
    14,552.28/20,082.12 = 7,928.28/x
  3. Step 3: Cross multiply
    14,552.28x = 20,082.12 × 7,928.28
  4. Step 4: Simplify right side
    14,552.28x = 159,216,670.35
  5. Step 5: Solve for x
    x = 159,216,670.35/14,552.28
  6. Step 6: Final answer
    x = 10,941.01

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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.