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Finding the Fourth Proportional to 18,510.14, 25,539.17 and 10,550.88

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Solution

The fourth proportional to 18,510.14, 25,539.17 and 10,550.88 is: 14,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.14 : 25,539.17 = 10,550.88 : x
  2. Step 2: Convert to fraction form
    18,510.14/25,539.17 = 10,550.88/x
  3. Step 3: Cross multiply
    18,510.14x = 25,539.17 × 10,550.88
  4. Step 4: Simplify right side
    18,510.14x = 269,460,665.22
  5. Step 5: Solve for x
    x = 269,460,665.22/18,510.14
  6. Step 6: Final answer
    x = 14,557.46

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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.