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Finding the Fourth Proportional to 56,393.52, 77,822.96 and 31,243.04

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Solution

The fourth proportional to 56,393.52, 77,822.96 and 31,243.04 is: 43,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,393.52 : 77,822.96 = 31,243.04 : x
  2. Step 2: Convert to fraction form
    56,393.52/77,822.96 = 31,243.04/x
  3. Step 3: Cross multiply
    56,393.52x = 77,822.96 × 31,243.04
  4. Step 4: Simplify right side
    56,393.52x = 2,431,425,852.20
  5. Step 5: Solve for x
    x = 2,431,425,852.20/56,393.52
  6. Step 6: Final answer
    x = 43,115.34

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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.