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Finding the Fourth Proportional to 57,323.40, 85,985.64 and 17,342.70

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Solution

The fourth proportional to 57,323.40, 85,985.64 and 17,342.70 is: 26,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,323.40 : 85,985.64 = 17,342.70 : x
  2. Step 2: Convert to fraction form
    57,323.40/85,985.64 = 17,342.70/x
  3. Step 3: Cross multiply
    57,323.40x = 85,985.64 × 17,342.70
  4. Step 4: Simplify right side
    57,323.40x = 1,491,223,158.83
  5. Step 5: Solve for x
    x = 1,491,223,158.83/57,323.40
  6. Step 6: Final answer
    x = 26,014.21

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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.