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Finding the Fourth Proportional to 20,059.92, 30,070.02 and 9,511.44

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Solution

The fourth proportional to 20,059.92, 30,070.02 and 9,511.44 is: 14,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.92 : 30,070.02 = 9,511.44 : x
  2. Step 2: Convert to fraction form
    20,059.92/30,070.02 = 9,511.44/x
  3. Step 3: Cross multiply
    20,059.92x = 30,070.02 × 9,511.44
  4. Step 4: Simplify right side
    20,059.92x = 286,009,191.03
  5. Step 5: Solve for x
    x = 286,009,191.03/20,059.92
  6. Step 6: Final answer
    x = 14,257.74

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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.