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Finding the Fourth Proportional to 18,392.15, 27,559.05 and 10,480.07

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Solution

The fourth proportional to 18,392.15, 27,559.05 and 10,480.07 is: 15,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.15 : 27,559.05 = 10,480.07 : x
  2. Step 2: Convert to fraction form
    18,392.15/27,559.05 = 10,480.07/x
  3. Step 3: Cross multiply
    18,392.15x = 27,559.05 × 10,480.07
  4. Step 4: Simplify right side
    18,392.15x = 288,820,635.34
  5. Step 5: Solve for x
    x = 288,820,635.34/18,392.15
  6. Step 6: Final answer
    x = 15,703.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.