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Finding the Fourth Proportional to 5,324.99, 7,988.25 and 1,626.74

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Solution

The fourth proportional to 5,324.99, 7,988.25 and 1,626.74 is: 2,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.99 : 7,988.25 = 1,626.74 : x
  2. Step 2: Convert to fraction form
    5,324.99/7,988.25 = 1,626.74/x
  3. Step 3: Cross multiply
    5,324.99x = 7,988.25 × 1,626.74
  4. Step 4: Simplify right side
    5,324.99x = 12,994,801.92
  5. Step 5: Solve for x
    x = 12,994,801.92/5,324.99
  6. Step 6: Final answer
    x = 2,440.35

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Double scale
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Similar ratio
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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.