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Finding the Fourth Proportional to 58,704.96, 81,012.40 and 31,846.88

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Solution

The fourth proportional to 58,704.96, 81,012.40 and 31,846.88 is: 43,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,704.96 : 81,012.40 = 31,846.88 : x
  2. Step 2: Convert to fraction form
    58,704.96/81,012.40 = 31,846.88/x
  3. Step 3: Cross multiply
    58,704.96x = 81,012.40 × 31,846.88
  4. Step 4: Simplify right side
    58,704.96x = 2,579,992,181.31
  5. Step 5: Solve for x
    x = 2,579,992,181.31/58,704.96
  6. Step 6: Final answer
    x = 43,948.45

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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.