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Finding the Fourth Proportional to 11,750.16, 17,620.06 and 5,505.14

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Solution

The fourth proportional to 11,750.16, 17,620.06 and 5,505.14 is: 8,255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.16 : 17,620.06 = 5,505.14 : x
  2. Step 2: Convert to fraction form
    11,750.16/17,620.06 = 5,505.14/x
  3. Step 3: Cross multiply
    11,750.16x = 17,620.06 × 5,505.14
  4. Step 4: Simplify right side
    11,750.16x = 97,000,897.11
  5. Step 5: Solve for x
    x = 97,000,897.11/11,750.16
  6. Step 6: Final answer
    x = 8,255.28

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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.