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Finding the Fourth Proportional to 4,993.76, 6,890.19 and 3,225.06

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Solution

The fourth proportional to 4,993.76, 6,890.19 and 3,225.06 is: 4,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.76 : 6,890.19 = 3,225.06 : x
  2. Step 2: Convert to fraction form
    4,993.76/6,890.19 = 3,225.06/x
  3. Step 3: Cross multiply
    4,993.76x = 6,890.19 × 3,225.06
  4. Step 4: Simplify right side
    4,993.76x = 22,221,276.16
  5. Step 5: Solve for x
    x = 22,221,276.16/4,993.76
  6. Step 6: Final answer
    x = 4,449.81

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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.