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Finding the Fourth Proportional to 18,335.70, 27,503.55 and 4,484.70

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Solution

The fourth proportional to 18,335.70, 27,503.55 and 4,484.70 is: 6,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.70 : 27,503.55 = 4,484.70 : x
  2. Step 2: Convert to fraction form
    18,335.70/27,503.55 = 4,484.70/x
  3. Step 3: Cross multiply
    18,335.70x = 27,503.55 × 4,484.70
  4. Step 4: Simplify right side
    18,335.70x = 123,345,170.69
  5. Step 5: Solve for x
    x = 123,345,170.69/18,335.70
  6. Step 6: Final answer
    x = 6,727.05

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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.