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Finding the Fourth Proportional to 18,539.34, 25,581.84 and 10,581.10

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Solution

The fourth proportional to 18,539.34, 25,581.84 and 10,581.10 is: 14,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.34 : 25,581.84 = 10,581.10 : x
  2. Step 2: Convert to fraction form
    18,539.34/25,581.84 = 10,581.10/x
  3. Step 3: Cross multiply
    18,539.34x = 25,581.84 × 10,581.10
  4. Step 4: Simplify right side
    18,539.34x = 270,684,007.22
  5. Step 5: Solve for x
    x = 270,684,007.22/18,539.34
  6. Step 6: Final answer
    x = 14,600.52

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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.