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Finding the Third Proportional to 56,278.50 and 85,848

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Solution

The third proportional to 56,278.50 and 85,848 is: 130,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,278.50 : 85,848 = 85,848 : x
  2. Step 2: Convert to fraction form
    56,278.50/85,848 = 85,848/x
  3. Step 3: Cross multiply
    56,278.50x = 85,848 × 85,848
  4. Step 4: Simplify right side
    56,278.50x = 7,369,879,104
  5. Step 5: Solve for x
    x = 7,369,879,104/56,278.50
  6. Step 6: Final answer
    x = 130,953.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.