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Finding the Fourth Proportional to 29,526.72, 40,766.40 and 18,921.12

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Solution

The fourth proportional to 29,526.72, 40,766.40 and 18,921.12 is: 26,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,526.72 : 40,766.40 = 18,921.12 : x
  2. Step 2: Convert to fraction form
    29,526.72/40,766.40 = 18,921.12/x
  3. Step 3: Cross multiply
    29,526.72x = 40,766.40 × 18,921.12
  4. Step 4: Simplify right side
    29,526.72x = 771,345,946.37
  5. Step 5: Solve for x
    x = 771,345,946.37/29,526.72
  6. Step 6: Final answer
    x = 26,123.66

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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.