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Finding the Fourth Proportional to 18,885.32, 28,327.66 and 6,573

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Solution

The fourth proportional to 18,885.32, 28,327.66 and 6,573 is: 9,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.32 : 28,327.66 = 6,573 : x
  2. Step 2: Convert to fraction form
    18,885.32/28,327.66 = 6,573/x
  3. Step 3: Cross multiply
    18,885.32x = 28,327.66 × 6,573
  4. Step 4: Simplify right side
    18,885.32x = 186,197,709.18
  5. Step 5: Solve for x
    x = 186,197,709.18/18,885.32
  6. Step 6: Final answer
    x = 9,859.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.