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Finding the Fourth Proportional to 16,636.34, 22,957.56 and 9,918.51

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Solution

The fourth proportional to 16,636.34, 22,957.56 and 9,918.51 is: 13,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,636.34 : 22,957.56 = 9,918.51 : x
  2. Step 2: Convert to fraction form
    16,636.34/22,957.56 = 9,918.51/x
  3. Step 3: Cross multiply
    16,636.34x = 22,957.56 × 9,918.51
  4. Step 4: Simplify right side
    16,636.34x = 227,704,788.44
  5. Step 5: Solve for x
    x = 227,704,788.44/16,636.34
  6. Step 6: Final answer
    x = 13,687.19

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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.