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Finding the Fourth Proportional to 56,813.79, 85,220.69 and 17,370.91

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Solution

The fourth proportional to 56,813.79, 85,220.69 and 17,370.91 is: 26,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.79 : 85,220.69 = 17,370.91 : x
  2. Step 2: Convert to fraction form
    56,813.79/85,220.69 = 17,370.91/x
  3. Step 3: Cross multiply
    56,813.79x = 85,220.69 × 17,370.91
  4. Step 4: Simplify right side
    56,813.79x = 1,480,360,936.13
  5. Step 5: Solve for x
    x = 1,480,360,936.13/56,813.79
  6. Step 6: Final answer
    x = 26,056.37

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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.