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Finding the Fourth Proportional to 29,658.90, 40,929.33 and 16,230.25

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Solution

The fourth proportional to 29,658.90, 40,929.33 and 16,230.25 is: 22,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.90 : 40,929.33 = 16,230.25 : x
  2. Step 2: Convert to fraction form
    29,658.90/40,929.33 = 16,230.25/x
  3. Step 3: Cross multiply
    29,658.90x = 40,929.33 × 16,230.25
  4. Step 4: Simplify right side
    29,658.90x = 664,293,258.23
  5. Step 5: Solve for x
    x = 664,293,258.23/29,658.90
  6. Step 6: Final answer
    x = 22,397.77

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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.