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Finding the Fourth Proportional to 11,589.51, 17,365.92 and 8,807.69

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Solution

The fourth proportional to 11,589.51, 17,365.92 and 8,807.69 is: 13,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,589.51 : 17,365.92 = 8,807.69 : x
  2. Step 2: Convert to fraction form
    11,589.51/17,365.92 = 8,807.69/x
  3. Step 3: Cross multiply
    11,589.51x = 17,365.92 × 8,807.69
  4. Step 4: Simplify right side
    11,589.51x = 152,953,577.40
  5. Step 5: Solve for x
    x = 152,953,577.40/11,589.51
  6. Step 6: Final answer
    x = 13,197.59

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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.