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Finding the Fourth Proportional to 8,497.47, 12,742.14 and 2,650.89

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Solution

The fourth proportional to 8,497.47, 12,742.14 and 2,650.89 is: 3,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497.47 : 12,742.14 = 2,650.89 : x
  2. Step 2: Convert to fraction form
    8,497.47/12,742.14 = 2,650.89/x
  3. Step 3: Cross multiply
    8,497.47x = 12,742.14 × 2,650.89
  4. Step 4: Simplify right side
    8,497.47x = 33,778,011.50
  5. Step 5: Solve for x
    x = 33,778,011.50/8,497.47
  6. Step 6: Final answer
    x = 3,975.07

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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.