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Finding the Fourth Proportional to 16,638.66, 22,965.27 and 9,569.16

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Solution

The fourth proportional to 16,638.66, 22,965.27 and 9,569.16 is: 13,207.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.66 : 22,965.27 = 9,569.16 : x
  2. Step 2: Convert to fraction form
    16,638.66/22,965.27 = 9,569.16/x
  3. Step 3: Cross multiply
    16,638.66x = 22,965.27 × 9,569.16
  4. Step 4: Simplify right side
    16,638.66x = 219,758,343.07
  5. Step 5: Solve for x
    x = 219,758,343.07/16,638.66
  6. Step 6: Final answer
    x = 13,207.69

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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.