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Finding the Fourth Proportional to 18,319.60, 27,480.94 and 5,841.40

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Solution

The fourth proportional to 18,319.60, 27,480.94 and 5,841.40 is: 8,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.60 : 27,480.94 = 5,841.40 : x
  2. Step 2: Convert to fraction form
    18,319.60/27,480.94 = 5,841.40/x
  3. Step 3: Cross multiply
    18,319.60x = 27,480.94 × 5,841.40
  4. Step 4: Simplify right side
    18,319.60x = 160,527,162.92
  5. Step 5: Solve for x
    x = 160,527,162.92/18,319.60
  6. Step 6: Final answer
    x = 8,762.59

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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.