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Finding the Fourth Proportional to 58,418.56, 80,617.52 and 31,560.99

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Solution

The fourth proportional to 58,418.56, 80,617.52 and 31,560.99 is: 43,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,418.56 : 80,617.52 = 31,560.99 : x
  2. Step 2: Convert to fraction form
    58,418.56/80,617.52 = 31,560.99/x
  3. Step 3: Cross multiply
    58,418.56x = 80,617.52 × 31,560.99
  4. Step 4: Simplify right side
    58,418.56x = 2,544,368,282.42
  5. Step 5: Solve for x
    x = 2,544,368,282.42/58,418.56
  6. Step 6: Final answer
    x = 43,554.11

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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.