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Finding the Fourth Proportional to 18,410.52, 25,415.16 and 10,854.48

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Solution

The fourth proportional to 18,410.52, 25,415.16 and 10,854.48 is: 14,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.52 : 25,415.16 = 10,854.48 : x
  2. Step 2: Convert to fraction form
    18,410.52/25,415.16 = 10,854.48/x
  3. Step 3: Cross multiply
    18,410.52x = 25,415.16 × 10,854.48
  4. Step 4: Simplify right side
    18,410.52x = 275,868,345.92
  5. Step 5: Solve for x
    x = 275,868,345.92/18,410.52
  6. Step 6: Final answer
    x = 14,984.28

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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.