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Finding the Fourth Proportional to 14,860.16, 20,506.72 and 8,236.16

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Solution

The fourth proportional to 14,860.16, 20,506.72 and 8,236.16 is: 11,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,860.16 : 20,506.72 = 8,236.16 : x
  2. Step 2: Convert to fraction form
    14,860.16/20,506.72 = 8,236.16/x
  3. Step 3: Cross multiply
    14,860.16x = 20,506.72 × 8,236.16
  4. Step 4: Simplify right side
    14,860.16x = 168,896,627.00
  5. Step 5: Solve for x
    x = 168,896,627.00/14,860.16
  6. Step 6: Final answer
    x = 11,365.73

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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.