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Finding the Fourth Proportional to 14,996.75, 20,695.52 and 8,709.53

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Solution

The fourth proportional to 14,996.75, 20,695.52 and 8,709.53 is: 12,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,996.75 : 20,695.52 = 8,709.53 : x
  2. Step 2: Convert to fraction form
    14,996.75/20,695.52 = 8,709.53/x
  3. Step 3: Cross multiply
    14,996.75x = 20,695.52 × 8,709.53
  4. Step 4: Simplify right side
    14,996.75x = 180,248,208.76
  5. Step 5: Solve for x
    x = 180,248,208.76/14,996.75
  6. Step 6: Final answer
    x = 12,019.15

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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.