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Finding the Fourth Proportional to 10,618.48, 15,935.96 and 7,354.44

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Solution

The fourth proportional to 10,618.48, 15,935.96 and 7,354.44 is: 11,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.48 : 15,935.96 = 7,354.44 : x
  2. Step 2: Convert to fraction form
    10,618.48/15,935.96 = 7,354.44/x
  3. Step 3: Cross multiply
    10,618.48x = 15,935.96 × 7,354.44
  4. Step 4: Simplify right side
    10,618.48x = 117,200,061.66
  5. Step 5: Solve for x
    x = 117,200,061.66/10,618.48
  6. Step 6: Final answer
    x = 11,037.37

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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.