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Finding the Fourth Proportional to 14,635.60, 21,964.20 and 9,703.60

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Solution

The fourth proportional to 14,635.60, 21,964.20 and 9,703.60 is: 14,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,635.60 : 21,964.20 = 9,703.60 : x
  2. Step 2: Convert to fraction form
    14,635.60/21,964.20 = 9,703.60/x
  3. Step 3: Cross multiply
    14,635.60x = 21,964.20 × 9,703.60
  4. Step 4: Simplify right side
    14,635.60x = 213,131,811.12
  5. Step 5: Solve for x
    x = 213,131,811.12/14,635.60
  6. Step 6: Final answer
    x = 14,562.56

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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.