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Finding the Fourth Proportional to 29,997.60, 44,987.80 and 8,936.76

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Solution

The fourth proportional to 29,997.60, 44,987.80 and 8,936.76 is: 13,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,997.60 : 44,987.80 = 8,936.76 : x
  2. Step 2: Convert to fraction form
    29,997.60/44,987.80 = 8,936.76/x
  3. Step 3: Cross multiply
    29,997.60x = 44,987.80 × 8,936.76
  4. Step 4: Simplify right side
    29,997.60x = 402,045,171.53
  5. Step 5: Solve for x
    x = 402,045,171.53/29,997.60
  6. Step 6: Final answer
    x = 13,402.58

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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.