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Finding the Fourth Proportional to 39,893.60, 59,811.60 and 22,368.80

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Solution

The fourth proportional to 39,893.60, 59,811.60 and 22,368.80 is: 33,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.60 : 59,811.60 = 22,368.80 : x
  2. Step 2: Convert to fraction form
    39,893.60/59,811.60 = 22,368.80/x
  3. Step 3: Cross multiply
    39,893.60x = 59,811.60 × 22,368.80
  4. Step 4: Simplify right side
    39,893.60x = 1,337,913,718.08
  5. Step 5: Solve for x
    x = 1,337,913,718.08/39,893.60
  6. Step 6: Final answer
    x = 33,537.05

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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.