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Finding the Fourth Proportional to 14,797.59, 20,426.45 and 10,015.20

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Solution

The fourth proportional to 14,797.59, 20,426.45 and 10,015.20 is: 13,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,797.59 : 20,426.45 = 10,015.20 : x
  2. Step 2: Convert to fraction form
    14,797.59/20,426.45 = 10,015.20/x
  3. Step 3: Cross multiply
    14,797.59x = 20,426.45 × 10,015.20
  4. Step 4: Simplify right side
    14,797.59x = 204,574,931.96
  5. Step 5: Solve for x
    x = 204,574,931.96/14,797.59
  6. Step 6: Final answer
    x = 13,824.88

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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.