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Finding the Fourth Proportional to 29,059.80, 43,594.06 and 12,419.76

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Solution

The fourth proportional to 29,059.80, 43,594.06 and 12,419.76 is: 18,631.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,059.80 : 43,594.06 = 12,419.76 : x
  2. Step 2: Convert to fraction form
    29,059.80/43,594.06 = 12,419.76/x
  3. Step 3: Cross multiply
    29,059.80x = 43,594.06 × 12,419.76
  4. Step 4: Simplify right side
    29,059.80x = 541,427,762.63
  5. Step 5: Solve for x
    x = 541,427,762.63/29,059.80
  6. Step 6: Final answer
    x = 18,631.50

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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.