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Finding the Fourth Proportional to 39,805.60, 59,746.80 and 33,968.80

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Solution

The fourth proportional to 39,805.60, 59,746.80 and 33,968.80 is: 50,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,805.60 : 59,746.80 = 33,968.80 : x
  2. Step 2: Convert to fraction form
    39,805.60/59,746.80 = 33,968.80/x
  3. Step 3: Cross multiply
    39,805.60x = 59,746.80 × 33,968.80
  4. Step 4: Simplify right side
    39,805.60x = 2,029,527,099.84
  5. Step 5: Solve for x
    x = 2,029,527,099.84/39,805.60
  6. Step 6: Final answer
    x = 50,985.97

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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.