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Finding the Fourth Proportional to 9,157.84, 12,636.94 and 7,273.98

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Solution

The fourth proportional to 9,157.84, 12,636.94 and 7,273.98 is: 10,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.84 : 12,636.94 = 7,273.98 : x
  2. Step 2: Convert to fraction form
    9,157.84/12,636.94 = 7,273.98/x
  3. Step 3: Cross multiply
    9,157.84x = 12,636.94 × 7,273.98
  4. Step 4: Simplify right side
    9,157.84x = 91,920,848.82
  5. Step 5: Solve for x
    x = 91,920,848.82/9,157.84
  6. Step 6: Final answer
    x = 10,037.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.