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Finding the Fourth Proportional to 11,607.48, 16,022.48 and 6,891.75

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Solution

The fourth proportional to 11,607.48, 16,022.48 and 6,891.75 is: 9,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.48 : 16,022.48 = 6,891.75 : x
  2. Step 2: Convert to fraction form
    11,607.48/16,022.48 = 6,891.75/x
  3. Step 3: Cross multiply
    11,607.48x = 16,022.48 × 6,891.75
  4. Step 4: Simplify right side
    11,607.48x = 110,422,892.08
  5. Step 5: Solve for x
    x = 110,422,892.08/11,607.48
  6. Step 6: Final answer
    x = 9,513.08

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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.