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Finding the Fourth Proportional to 18,507.60, 25,542 and 10,552.32

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Solution

The fourth proportional to 18,507.60, 25,542 and 10,552.32 is: 14,563.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.60 : 25,542 = 10,552.32 : x
  2. Step 2: Convert to fraction form
    18,507.60/25,542 = 10,552.32/x
  3. Step 3: Cross multiply
    18,507.60x = 25,542 × 10,552.32
  4. Step 4: Simplify right side
    18,507.60x = 269,527,357.44
  5. Step 5: Solve for x
    x = 269,527,357.44/18,507.60
  6. Step 6: Final answer
    x = 14,563.06

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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.