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Finding the Fourth Proportional to 18,809.60, 25,927.52 and 14,824.40

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Solution

The fourth proportional to 18,809.60, 25,927.52 and 14,824.40 is: 20,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809.60 : 25,927.52 = 14,824.40 : x
  2. Step 2: Convert to fraction form
    18,809.60/25,927.52 = 14,824.40/x
  3. Step 3: Cross multiply
    18,809.60x = 25,927.52 × 14,824.40
  4. Step 4: Simplify right side
    18,809.60x = 384,359,927.49
  5. Step 5: Solve for x
    x = 384,359,927.49/18,809.60
  6. Step 6: Final answer
    x = 20,434.24

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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.