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Finding the Fourth Proportional to 29,085.48, 40,141.54 and 17,149.88

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Solution

The fourth proportional to 29,085.48, 40,141.54 and 17,149.88 is: 23,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,085.48 : 40,141.54 = 17,149.88 : x
  2. Step 2: Convert to fraction form
    29,085.48/40,141.54 = 17,149.88/x
  3. Step 3: Cross multiply
    29,085.48x = 40,141.54 × 17,149.88
  4. Step 4: Simplify right side
    29,085.48x = 688,422,594.02
  5. Step 5: Solve for x
    x = 688,422,594.02/29,085.48
  6. Step 6: Final answer
    x = 23,668.94

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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.