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Finding the Fourth Proportional to 14,502.15, 20,012.98 and 8,214.53

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Solution

The fourth proportional to 14,502.15, 20,012.98 and 8,214.53 is: 11,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,502.15 : 20,012.98 = 8,214.53 : x
  2. Step 2: Convert to fraction form
    14,502.15/20,012.98 = 8,214.53/x
  3. Step 3: Cross multiply
    14,502.15x = 20,012.98 × 8,214.53
  4. Step 4: Simplify right side
    14,502.15x = 164,397,124.53
  5. Step 5: Solve for x
    x = 164,397,124.53/14,502.15
  6. Step 6: Final answer
    x = 11,336.05

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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.