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Finding the Fourth Proportional to 19,602.40, 29,393.52 and 5,749.60

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Solution

The fourth proportional to 19,602.40, 29,393.52 and 5,749.60 is: 8,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.40 : 29,393.52 = 5,749.60 : x
  2. Step 2: Convert to fraction form
    19,602.40/29,393.52 = 5,749.60/x
  3. Step 3: Cross multiply
    19,602.40x = 29,393.52 × 5,749.60
  4. Step 4: Simplify right side
    19,602.40x = 169,000,982.59
  5. Step 5: Solve for x
    x = 169,000,982.59/19,602.40
  6. Step 6: Final answer
    x = 8,621.44

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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.