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Finding the Fourth Proportional to 29,963.20, 44,955.60 and 12,445.60

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Solution

The fourth proportional to 29,963.20, 44,955.60 and 12,445.60 is: 18,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,963.20 : 44,955.60 = 12,445.60 : x
  2. Step 2: Convert to fraction form
    29,963.20/44,955.60 = 12,445.60/x
  3. Step 3: Cross multiply
    29,963.20x = 44,955.60 × 12,445.60
  4. Step 4: Simplify right side
    29,963.20x = 559,499,415.36
  5. Step 5: Solve for x
    x = 559,499,415.36/29,963.20
  6. Step 6: Final answer
    x = 18,672.89

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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.