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Finding the Fourth Proportional to 11,495.80, 15,865.73 and 6,460.27

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Solution

The fourth proportional to 11,495.80, 15,865.73 and 6,460.27 is: 8,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.80 : 15,865.73 = 6,460.27 : x
  2. Step 2: Convert to fraction form
    11,495.80/15,865.73 = 6,460.27/x
  3. Step 3: Cross multiply
    11,495.80x = 15,865.73 × 6,460.27
  4. Step 4: Simplify right side
    11,495.80x = 102,496,899.55
  5. Step 5: Solve for x
    x = 102,496,899.55/11,495.80
  6. Step 6: Final answer
    x = 8,916.03

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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.