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Finding the Fourth Proportional to 9,384.75, 12,950.96 and 5,193.63

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Solution

The fourth proportional to 9,384.75, 12,950.96 and 5,193.63 is: 7,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,384.75 : 12,950.96 = 5,193.63 : x
  2. Step 2: Convert to fraction form
    9,384.75/12,950.96 = 5,193.63/x
  3. Step 3: Cross multiply
    9,384.75x = 12,950.96 × 5,193.63
  4. Step 4: Simplify right side
    9,384.75x = 67,262,468.42
  5. Step 5: Solve for x
    x = 67,262,468.42/9,384.75
  6. Step 6: Final answer
    x = 7,167.21

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Half scale
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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.