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Finding the Fourth Proportional to 14,754.12, 20,368.12 and 9,725.64

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Solution

The fourth proportional to 14,754.12, 20,368.12 and 9,725.64 is: 13,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.12 : 20,368.12 = 9,725.64 : x
  2. Step 2: Convert to fraction form
    14,754.12/20,368.12 = 9,725.64/x
  3. Step 3: Cross multiply
    14,754.12x = 20,368.12 × 9,725.64
  4. Step 4: Simplify right side
    14,754.12x = 198,093,002.60
  5. Step 5: Solve for x
    x = 198,093,002.60/14,754.12
  6. Step 6: Final answer
    x = 13,426.28

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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.