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Finding the Fourth Proportional to 58,525.66, 80,765.14 and 31,668.64

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Solution

The fourth proportional to 58,525.66, 80,765.14 and 31,668.64 is: 43,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,525.66 : 80,765.14 = 31,668.64 : x
  2. Step 2: Convert to fraction form
    58,525.66/80,765.14 = 31,668.64/x
  3. Step 3: Cross multiply
    58,525.66x = 80,765.14 × 31,668.64
  4. Step 4: Simplify right side
    58,525.66x = 2,557,721,739.38
  5. Step 5: Solve for x
    x = 2,557,721,739.38/58,525.66
  6. Step 6: Final answer
    x = 43,702.57

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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.