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Finding the Fourth Proportional to 29,059.60, 43,605.60 and 12,416.80

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Solution

The fourth proportional to 29,059.60, 43,605.60 and 12,416.80 is: 18,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,059.60 : 43,605.60 = 12,416.80 : x
  2. Step 2: Convert to fraction form
    29,059.60/43,605.60 = 12,416.80/x
  3. Step 3: Cross multiply
    29,059.60x = 43,605.60 × 12,416.80
  4. Step 4: Simplify right side
    29,059.60x = 541,442,014.08
  5. Step 5: Solve for x
    x = 541,442,014.08/29,059.60
  6. Step 6: Final answer
    x = 18,632.12

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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.