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Finding the Fourth Proportional to 47,672.16, 71,485.50 and 17,665.81

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Solution

The fourth proportional to 47,672.16, 71,485.50 and 17,665.81 is: 26,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,672.16 : 71,485.50 = 17,665.81 : x
  2. Step 2: Convert to fraction form
    47,672.16/71,485.50 = 17,665.81/x
  3. Step 3: Cross multiply
    47,672.16x = 71,485.50 × 17,665.81
  4. Step 4: Simplify right side
    47,672.16x = 1,262,849,260.76
  5. Step 5: Solve for x
    x = 1,262,849,260.76/47,672.16
  6. Step 6: Final answer
    x = 26,490.29

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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.