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Finding the Fourth Proportional to 29,617.19, 40,870.53 and 16,188.60

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Solution

The fourth proportional to 29,617.19, 40,870.53 and 16,188.60 is: 22,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,617.19 : 40,870.53 = 16,188.60 : x
  2. Step 2: Convert to fraction form
    29,617.19/40,870.53 = 16,188.60/x
  3. Step 3: Cross multiply
    29,617.19x = 40,870.53 × 16,188.60
  4. Step 4: Simplify right side
    29,617.19x = 661,636,661.96
  5. Step 5: Solve for x
    x = 661,636,661.96/29,617.19
  6. Step 6: Final answer
    x = 22,339.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.