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Finding the Fourth Proportional to 17,065.32, 23,550.04 and 9,990.32

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Solution

The fourth proportional to 17,065.32, 23,550.04 and 9,990.32 is: 13,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,065.32 : 23,550.04 = 9,990.32 : x
  2. Step 2: Convert to fraction form
    17,065.32/23,550.04 = 9,990.32/x
  3. Step 3: Cross multiply
    17,065.32x = 23,550.04 × 9,990.32
  4. Step 4: Simplify right side
    17,065.32x = 235,272,435.61
  5. Step 5: Solve for x
    x = 235,272,435.61/17,065.32
  6. Step 6: Final answer
    x = 13,786.58

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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.