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Finding the Fourth Proportional to 29,668.92, 40,953.47 and 18,347.10

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Solution

The fourth proportional to 29,668.92, 40,953.47 and 18,347.10 is: 25,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,668.92 : 40,953.47 = 18,347.10 : x
  2. Step 2: Convert to fraction form
    29,668.92/40,953.47 = 18,347.10/x
  3. Step 3: Cross multiply
    29,668.92x = 40,953.47 × 18,347.10
  4. Step 4: Simplify right side
    29,668.92x = 751,377,409.44
  5. Step 5: Solve for x
    x = 751,377,409.44/29,668.92
  6. Step 6: Final answer
    x = 25,325.40

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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.