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Finding the Fourth Proportional to 16,643.62, 22,968.38 and 9,090.18

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Solution

The fourth proportional to 16,643.62, 22,968.38 and 9,090.18 is: 12,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.62 : 22,968.38 = 9,090.18 : x
  2. Step 2: Convert to fraction form
    16,643.62/22,968.38 = 9,090.18/x
  3. Step 3: Cross multiply
    16,643.62x = 22,968.38 × 9,090.18
  4. Step 4: Simplify right side
    16,643.62x = 208,786,708.51
  5. Step 5: Solve for x
    x = 208,786,708.51/16,643.62
  6. Step 6: Final answer
    x = 12,544.55

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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.