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Finding the Fourth Proportional to 14,592.64, 20,133.84 and 8,621.68

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Solution

The fourth proportional to 14,592.64, 20,133.84 and 8,621.68 is: 11,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,592.64 : 20,133.84 = 8,621.68 : x
  2. Step 2: Convert to fraction form
    14,592.64/20,133.84 = 8,621.68/x
  3. Step 3: Cross multiply
    14,592.64x = 20,133.84 × 8,621.68
  4. Step 4: Simplify right side
    14,592.64x = 173,587,525.65
  5. Step 5: Solve for x
    x = 173,587,525.65/14,592.64
  6. Step 6: Final answer
    x = 11,895.55

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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.