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Finding the Fourth Proportional to 5,628.70, 8,443.05 and 4,851.10

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Solution

The fourth proportional to 5,628.70, 8,443.05 and 4,851.10 is: 7,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.70 : 8,443.05 = 4,851.10 : x
  2. Step 2: Convert to fraction form
    5,628.70/8,443.05 = 4,851.10/x
  3. Step 3: Cross multiply
    5,628.70x = 8,443.05 × 4,851.10
  4. Step 4: Simplify right side
    5,628.70x = 40,958,079.86
  5. Step 5: Solve for x
    x = 40,958,079.86/5,628.70
  6. Step 6: Final answer
    x = 7,276.65

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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.