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Finding the Fourth Proportional to 11,336.66, 15,647.68 and 7,357.54

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Solution

The fourth proportional to 11,336.66, 15,647.68 and 7,357.54 is: 10,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.66 : 15,647.68 = 7,357.54 : x
  2. Step 2: Convert to fraction form
    11,336.66/15,647.68 = 7,357.54/x
  3. Step 3: Cross multiply
    11,336.66x = 15,647.68 × 7,357.54
  4. Step 4: Simplify right side
    11,336.66x = 115,128,431.51
  5. Step 5: Solve for x
    x = 115,128,431.51/11,336.66
  6. Step 6: Final answer
    x = 10,155.41

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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.