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Finding the Fourth Proportional to 18,491.52, 25,520.94 and 10,534.48

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Solution

The fourth proportional to 18,491.52, 25,520.94 and 10,534.48 is: 14,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.52 : 25,520.94 = 10,534.48 : x
  2. Step 2: Convert to fraction form
    18,491.52/25,520.94 = 10,534.48/x
  3. Step 3: Cross multiply
    18,491.52x = 25,520.94 × 10,534.48
  4. Step 4: Simplify right side
    18,491.52x = 268,849,832.01
  5. Step 5: Solve for x
    x = 268,849,832.01/18,491.52
  6. Step 6: Final answer
    x = 14,539.09

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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.