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Finding the Fourth Proportional to 32,412.60, 48,618.90 and 19,071.90

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Solution

The fourth proportional to 32,412.60, 48,618.90 and 19,071.90 is: 28,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,412.60 : 48,618.90 = 19,071.90 : x
  2. Step 2: Convert to fraction form
    32,412.60/48,618.90 = 19,071.90/x
  3. Step 3: Cross multiply
    32,412.60x = 48,618.90 × 19,071.90
  4. Step 4: Simplify right side
    32,412.60x = 927,254,798.91
  5. Step 5: Solve for x
    x = 927,254,798.91/32,412.60
  6. Step 6: Final answer
    x = 28,607.85

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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.