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Finding the Fourth Proportional to 29,623.30, 40,880.64 and 17,687.68

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Solution

The fourth proportional to 29,623.30, 40,880.64 and 17,687.68 is: 24,409.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,623.30 : 40,880.64 = 17,687.68 : x
  2. Step 2: Convert to fraction form
    29,623.30/40,880.64 = 17,687.68/x
  3. Step 3: Cross multiply
    29,623.30x = 40,880.64 × 17,687.68
  4. Step 4: Simplify right side
    29,623.30x = 723,083,678.52
  5. Step 5: Solve for x
    x = 723,083,678.52/29,623.30
  6. Step 6: Final answer
    x = 24,409.29

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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.