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Finding the Fourth Proportional to 58,528.54, 80,768.80 and 31,670.46

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Solution

The fourth proportional to 58,528.54, 80,768.80 and 31,670.46 is: 43,704.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,528.54 : 80,768.80 = 31,670.46 : x
  2. Step 2: Convert to fraction form
    58,528.54/80,768.80 = 31,670.46/x
  3. Step 3: Cross multiply
    58,528.54x = 80,768.80 × 31,670.46
  4. Step 4: Simplify right side
    58,528.54x = 2,557,985,049.65
  5. Step 5: Solve for x
    x = 2,557,985,049.65/58,528.54
  6. Step 6: Final answer
    x = 43,704.92

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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.