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Finding the Fourth Proportional to 56,755.72, 78,349.43 and 32,877.73

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Solution

The fourth proportional to 56,755.72, 78,349.43 and 32,877.73 is: 45,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,755.72 : 78,349.43 = 32,877.73 : x
  2. Step 2: Convert to fraction form
    56,755.72/78,349.43 = 32,877.73/x
  3. Step 3: Cross multiply
    56,755.72x = 78,349.43 × 32,877.73
  4. Step 4: Simplify right side
    56,755.72x = 2,575,950,849.06
  5. Step 5: Solve for x
    x = 2,575,950,849.06/56,755.72
  6. Step 6: Final answer
    x = 45,386.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.