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Finding the Fourth Proportional to 29,181.60, 43,772.40 and 8,402.40

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Solution

The fourth proportional to 29,181.60, 43,772.40 and 8,402.40 is: 12,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,181.60 : 43,772.40 = 8,402.40 : x
  2. Step 2: Convert to fraction form
    29,181.60/43,772.40 = 8,402.40/x
  3. Step 3: Cross multiply
    29,181.60x = 43,772.40 × 8,402.40
  4. Step 4: Simplify right side
    29,181.60x = 367,793,213.76
  5. Step 5: Solve for x
    x = 367,793,213.76/29,181.60
  6. Step 6: Final answer
    x = 12,603.60

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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.