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Finding the Fourth Proportional to 11,333.12, 15,633.92 and 7,356.48

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Solution

The fourth proportional to 11,333.12, 15,633.92 and 7,356.48 is: 10,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.12 : 15,633.92 = 7,356.48 : x
  2. Step 2: Convert to fraction form
    11,333.12/15,633.92 = 7,356.48/x
  3. Step 3: Cross multiply
    11,333.12x = 15,633.92 × 7,356.48
  4. Step 4: Simplify right side
    11,333.12x = 115,010,619.80
  5. Step 5: Solve for x
    x = 115,010,619.80/11,333.12
  6. Step 6: Final answer
    x = 10,148.19

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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.