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Finding the Fourth Proportional to 20,059.52, 30,030.24 and 19,204.16

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Solution

The fourth proportional to 20,059.52, 30,030.24 and 19,204.16 is: 28,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.52 : 30,030.24 = 19,204.16 : x
  2. Step 2: Convert to fraction form
    20,059.52/30,030.24 = 19,204.16/x
  3. Step 3: Cross multiply
    20,059.52x = 30,030.24 × 19,204.16
  4. Step 4: Simplify right side
    20,059.52x = 576,705,533.80
  5. Step 5: Solve for x
    x = 576,705,533.80/20,059.52
  6. Step 6: Final answer
    x = 28,749.72

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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.