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Finding the Fourth Proportional to 12,174.96, 18,264.90 and 5,154.96

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Solution

The fourth proportional to 12,174.96, 18,264.90 and 5,154.96 is: 7,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.96 : 18,264.90 = 5,154.96 : x
  2. Step 2: Convert to fraction form
    12,174.96/18,264.90 = 5,154.96/x
  3. Step 3: Cross multiply
    12,174.96x = 18,264.90 × 5,154.96
  4. Step 4: Simplify right side
    12,174.96x = 94,154,828.90
  5. Step 5: Solve for x
    x = 94,154,828.90/12,174.96
  6. Step 6: Final answer
    x = 7,733.48

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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.