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Finding the Fourth Proportional to 31,931.01, 44,061.44 and 18,506.48

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Solution

The fourth proportional to 31,931.01, 44,061.44 and 18,506.48 is: 25,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,931.01 : 44,061.44 = 18,506.48 : x
  2. Step 2: Convert to fraction form
    31,931.01/44,061.44 = 18,506.48/x
  3. Step 3: Cross multiply
    31,931.01x = 44,061.44 × 18,506.48
  4. Step 4: Simplify right side
    31,931.01x = 815,421,845.29
  5. Step 5: Solve for x
    x = 815,421,845.29/31,931.01
  6. Step 6: Final answer
    x = 25,536.99

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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.