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Finding the Fourth Proportional to 11,495.61, 17,242.12 and 3,176.81

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Solution

The fourth proportional to 11,495.61, 17,242.12 and 3,176.81 is: 4,764.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.61 : 17,242.12 = 3,176.81 : x
  2. Step 2: Convert to fraction form
    11,495.61/17,242.12 = 3,176.81/x
  3. Step 3: Cross multiply
    11,495.61x = 17,242.12 × 3,176.81
  4. Step 4: Simplify right side
    11,495.61x = 54,774,974.40
  5. Step 5: Solve for x
    x = 54,774,974.40/11,495.61
  6. Step 6: Final answer
    x = 4,764.86

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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.