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Finding the Fourth Proportional to 16,615.75, 22,929.74 and 9,542.64

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Solution

The fourth proportional to 16,615.75, 22,929.74 and 9,542.64 is: 13,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.75 : 22,929.74 = 9,542.64 : x
  2. Step 2: Convert to fraction form
    16,615.75/22,929.74 = 9,542.64/x
  3. Step 3: Cross multiply
    16,615.75x = 22,929.74 × 9,542.64
  4. Step 4: Simplify right side
    16,615.75x = 218,810,254.11
  5. Step 5: Solve for x
    x = 218,810,254.11/16,615.75
  6. Step 6: Final answer
    x = 13,168.85

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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.