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Finding the Fourth Proportional to 14,591.60, 21,898.20 and 9,659.60

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Solution

The fourth proportional to 14,591.60, 21,898.20 and 9,659.60 is: 14,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.60 : 21,898.20 = 9,659.60 : x
  2. Step 2: Convert to fraction form
    14,591.60/21,898.20 = 9,659.60/x
  3. Step 3: Cross multiply
    14,591.60x = 21,898.20 × 9,659.60
  4. Step 4: Simplify right side
    14,591.60x = 211,527,852.72
  5. Step 5: Solve for x
    x = 211,527,852.72/14,591.60
  6. Step 6: Final answer
    x = 14,496.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.