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Finding the Fourth Proportional to 74,936.60, 112,404.90 and 37,611.80

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Solution

The fourth proportional to 74,936.60, 112,404.90 and 37,611.80 is: 56,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,936.60 : 112,404.90 = 37,611.80 : x
  2. Step 2: Convert to fraction form
    74,936.60/112,404.90 = 37,611.80/x
  3. Step 3: Cross multiply
    74,936.60x = 112,404.90 × 37,611.80
  4. Step 4: Simplify right side
    74,936.60x = 4,227,750,617.82
  5. Step 5: Solve for x
    x = 4,227,750,617.82/74,936.60
  6. Step 6: Final answer
    x = 56,417.70

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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.