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Finding the Fourth Proportional to 58,480, 80,702.26 and 32,986.28

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Solution

The fourth proportional to 58,480, 80,702.26 and 32,986.28 is: 45,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,480 : 80,702.26 = 32,986.28 : x
  2. Step 2: Convert to fraction form
    58,480/80,702.26 = 32,986.28/x
  3. Step 3: Cross multiply
    58,480x = 80,702.26 × 32,986.28
  4. Step 4: Simplify right side
    58,480x = 2,662,067,344.99
  5. Step 5: Solve for x
    x = 2,662,067,344.99/58,480
  6. Step 6: Final answer
    x = 45,520.99

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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.