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Finding the Fourth Proportional to 29,658.79, 40,929.30 and 16,738.18

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Solution

The fourth proportional to 29,658.79, 40,929.30 and 16,738.18 is: 23,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.79 : 40,929.30 = 16,738.18 : x
  2. Step 2: Convert to fraction form
    29,658.79/40,929.30 = 16,738.18/x
  3. Step 3: Cross multiply
    29,658.79x = 40,929.30 × 16,738.18
  4. Step 4: Simplify right side
    29,658.79x = 685,081,888.35
  5. Step 5: Solve for x
    x = 685,081,888.35/29,658.79
  6. Step 6: Final answer
    x = 23,098.78

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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.