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Finding the Fourth Proportional to 56,757.99, 85,133.81 and 17,312.00

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Solution

The fourth proportional to 56,757.99, 85,133.81 and 17,312.00 is: 25,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.99 : 85,133.81 = 17,312.00 : x
  2. Step 2: Convert to fraction form
    56,757.99/85,133.81 = 17,312.00/x
  3. Step 3: Cross multiply
    56,757.99x = 85,133.81 × 17,312.00
  4. Step 4: Simplify right side
    56,757.99x = 1,473,836,774.83
  5. Step 5: Solve for x
    x = 1,473,836,774.83/56,757.99
  6. Step 6: Final answer
    x = 25,967.04

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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.