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Finding the Fourth Proportional to 18,087.86, 24,944.58 and 12,412.58

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Solution

The fourth proportional to 18,087.86, 24,944.58 and 12,412.58 is: 17,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.86 : 24,944.58 = 12,412.58 : x
  2. Step 2: Convert to fraction form
    18,087.86/24,944.58 = 12,412.58/x
  3. Step 3: Cross multiply
    18,087.86x = 24,944.58 × 12,412.58
  4. Step 4: Simplify right side
    18,087.86x = 309,626,594.82
  5. Step 5: Solve for x
    x = 309,626,594.82/18,087.86
  6. Step 6: Final answer
    x = 17,117.92

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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.