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Finding the Fourth Proportional to 32,579.40, 48,885.30 and 12,858.60

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Solution

The fourth proportional to 32,579.40, 48,885.30 and 12,858.60 is: 19,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,579.40 : 48,885.30 = 12,858.60 : x
  2. Step 2: Convert to fraction form
    32,579.40/48,885.30 = 12,858.60/x
  3. Step 3: Cross multiply
    32,579.40x = 48,885.30 × 12,858.60
  4. Step 4: Simplify right side
    32,579.40x = 628,596,518.58
  5. Step 5: Solve for x
    x = 628,596,518.58/32,579.40
  6. Step 6: Final answer
    x = 19,294.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.