Home / 18,612.75-25,685.61-10,654.92

Finding the Fourth Proportional to 18,612.75, 25,685.61 and 10,654.92

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Solution

The fourth proportional to 18,612.75, 25,685.61 and 10,654.92 is: 14,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.75 : 25,685.61 = 10,654.92 : x
  2. Step 2: Convert to fraction form
    18,612.75/25,685.61 = 10,654.92/x
  3. Step 3: Cross multiply
    18,612.75x = 25,685.61 × 10,654.92
  4. Step 4: Simplify right side
    18,612.75x = 273,678,119.70
  5. Step 5: Solve for x
    x = 273,678,119.70/18,612.75
  6. Step 6: Final answer
    x = 14,703.80

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Double scale
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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.