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Finding the Fourth Proportional to 18,590.61, 27,885.75 and 4,550.70

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Solution

The fourth proportional to 18,590.61, 27,885.75 and 4,550.70 is: 6,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.61 : 27,885.75 = 4,550.70 : x
  2. Step 2: Convert to fraction form
    18,590.61/27,885.75 = 4,550.70/x
  3. Step 3: Cross multiply
    18,590.61x = 27,885.75 × 4,550.70
  4. Step 4: Simplify right side
    18,590.61x = 126,899,682.53
  5. Step 5: Solve for x
    x = 126,899,682.53/18,590.61
  6. Step 6: Final answer
    x = 6,826.01

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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.