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Finding the Fourth Proportional to 9,112.53, 13,668.78 and 7,035.55

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Solution

The fourth proportional to 9,112.53, 13,668.78 and 7,035.55 is: 10,553.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.53 : 13,668.78 = 7,035.55 : x
  2. Step 2: Convert to fraction form
    9,112.53/13,668.78 = 7,035.55/x
  3. Step 3: Cross multiply
    9,112.53x = 13,668.78 × 7,035.55
  4. Step 4: Simplify right side
    9,112.53x = 96,167,385.13
  5. Step 5: Solve for x
    x = 96,167,385.13/9,112.53
  6. Step 6: Final answer
    x = 10,553.31

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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.