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Finding the Fourth Proportional to 56,750.78, 85,131.07 and 14,630.51

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Solution

The fourth proportional to 56,750.78, 85,131.07 and 14,630.51 is: 21,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,750.78 : 85,131.07 = 14,630.51 : x
  2. Step 2: Convert to fraction form
    56,750.78/85,131.07 = 14,630.51/x
  3. Step 3: Cross multiply
    56,750.78x = 85,131.07 × 14,630.51
  4. Step 4: Simplify right side
    56,750.78x = 1,245,510,545.29
  5. Step 5: Solve for x
    x = 1,245,510,545.29/56,750.78
  6. Step 6: Final answer
    x = 21,947.02

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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.