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Finding the Fourth Proportional to 29,432.98, 40,619.46 and 16,513.48

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Solution

The fourth proportional to 29,432.98, 40,619.46 and 16,513.48 is: 22,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,432.98 : 40,619.46 = 16,513.48 : x
  2. Step 2: Convert to fraction form
    29,432.98/40,619.46 = 16,513.48/x
  3. Step 3: Cross multiply
    29,432.98x = 40,619.46 × 16,513.48
  4. Step 4: Simplify right side
    29,432.98x = 670,768,640.32
  5. Step 5: Solve for x
    x = 670,768,640.32/29,432.98
  6. Step 6: Final answer
    x = 22,789.70

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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.