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Finding the Fourth Proportional to 57,984.20, 86,985.90 and 24,720.20

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Solution

The fourth proportional to 57,984.20, 86,985.90 and 24,720.20 is: 37,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.20 : 86,985.90 = 24,720.20 : x
  2. Step 2: Convert to fraction form
    57,984.20/86,985.90 = 24,720.20/x
  3. Step 3: Cross multiply
    57,984.20x = 86,985.90 × 24,720.20
  4. Step 4: Simplify right side
    57,984.20x = 2,150,308,845.18
  5. Step 5: Solve for x
    x = 2,150,308,845.18/57,984.20
  6. Step 6: Final answer
    x = 37,084.39

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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.