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Finding the Fourth Proportional to 14,903.64, 20,563.62 and 8,936.40

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Solution

The fourth proportional to 14,903.64, 20,563.62 and 8,936.40 is: 12,330.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.64 : 20,563.62 = 8,936.40 : x
  2. Step 2: Convert to fraction form
    14,903.64/20,563.62 = 8,936.40/x
  3. Step 3: Cross multiply
    14,903.64x = 20,563.62 × 8,936.40
  4. Step 4: Simplify right side
    14,903.64x = 183,764,733.77
  5. Step 5: Solve for x
    x = 183,764,733.77/14,903.64
  6. Step 6: Final answer
    x = 12,330.19

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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.