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Finding the Fourth Proportional to 14,502.28, 21,738.12 and 5,725.12

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Solution

The fourth proportional to 14,502.28, 21,738.12 and 5,725.12 is: 8,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.28 : 21,738.12 = 5,725.12 : x
  2. Step 2: Convert to fraction form
    14,502.28/21,738.12 = 5,725.12/x
  3. Step 3: Cross multiply
    14,502.28x = 21,738.12 × 5,725.12
  4. Step 4: Simplify right side
    14,502.28x = 124,453,345.57
  5. Step 5: Solve for x
    x = 124,453,345.57/14,502.28
  6. Step 6: Final answer
    x = 8,581.64

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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.