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Finding the Fourth Proportional to 14,850.64, 20,494.86 and 8,563.42

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Solution

The fourth proportional to 14,850.64, 20,494.86 and 8,563.42 is: 11,818.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,850.64 : 20,494.86 = 8,563.42 : x
  2. Step 2: Convert to fraction form
    14,850.64/20,494.86 = 8,563.42/x
  3. Step 3: Cross multiply
    14,850.64x = 20,494.86 × 8,563.42
  4. Step 4: Simplify right side
    14,850.64x = 175,506,094.02
  5. Step 5: Solve for x
    x = 175,506,094.02/14,850.64
  6. Step 6: Final answer
    x = 11,818.08

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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.