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Finding the Fourth Proportional to 29,695.77, 40,980.42 and 17,120.52

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Solution

The fourth proportional to 29,695.77, 40,980.42 and 17,120.52 is: 23,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,695.77 : 40,980.42 = 17,120.52 : x
  2. Step 2: Convert to fraction form
    29,695.77/40,980.42 = 17,120.52/x
  3. Step 3: Cross multiply
    29,695.77x = 40,980.42 × 17,120.52
  4. Step 4: Simplify right side
    29,695.77x = 701,606,100.22
  5. Step 5: Solve for x
    x = 701,606,100.22/29,695.77
  6. Step 6: Final answer
    x = 23,626.47

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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.