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Finding the Fourth Proportional to 58,979.70, 88,469.55 and 30,986.10

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Solution

The fourth proportional to 58,979.70, 88,469.55 and 30,986.10 is: 46,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,979.70 : 88,469.55 = 30,986.10 : x
  2. Step 2: Convert to fraction form
    58,979.70/88,469.55 = 30,986.10/x
  3. Step 3: Cross multiply
    58,979.70x = 88,469.55 × 30,986.10
  4. Step 4: Simplify right side
    58,979.70x = 2,741,326,323.26
  5. Step 5: Solve for x
    x = 2,741,326,323.26/58,979.70
  6. Step 6: Final answer
    x = 46,479.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.