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Finding the Fourth Proportional to 58,777.48, 81,114.36 and 31,921.12

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Solution

The fourth proportional to 58,777.48, 81,114.36 and 31,921.12 is: 44,051.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,777.48 : 81,114.36 = 31,921.12 : x
  2. Step 2: Convert to fraction form
    58,777.48/81,114.36 = 31,921.12/x
  3. Step 3: Cross multiply
    58,777.48x = 81,114.36 × 31,921.12
  4. Step 4: Simplify right side
    58,777.48x = 2,589,261,219.28
  5. Step 5: Solve for x
    x = 2,589,261,219.28/58,777.48
  6. Step 6: Final answer
    x = 44,051.93

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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.