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Finding the Fourth Proportional to 14,700.56, 20,293.20 and 8,734.10

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Solution

The fourth proportional to 14,700.56, 20,293.20 and 8,734.10 is: 12,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.56 : 20,293.20 = 8,734.10 : x
  2. Step 2: Convert to fraction form
    14,700.56/20,293.20 = 8,734.10/x
  3. Step 3: Cross multiply
    14,700.56x = 20,293.20 × 8,734.10
  4. Step 4: Simplify right side
    14,700.56x = 177,242,736.65
  5. Step 5: Solve for x
    x = 177,242,736.65/14,700.56
  6. Step 6: Final answer
    x = 12,056.87

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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.