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Finding the Fourth Proportional to 57,324.71, 85,987.07 and 17,881.86

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Solution

The fourth proportional to 57,324.71, 85,987.07 and 17,881.86 is: 26,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,324.71 : 85,987.07 = 17,881.86 : x
  2. Step 2: Convert to fraction form
    57,324.71/85,987.07 = 17,881.86/x
  3. Step 3: Cross multiply
    57,324.71x = 85,987.07 × 17,881.86
  4. Step 4: Simplify right side
    57,324.71x = 1,537,609,047.65
  5. Step 5: Solve for x
    x = 1,537,609,047.65/57,324.71
  6. Step 6: Final answer
    x = 26,822.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.