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Finding the Fourth Proportional to 29,603.78, 40,852.69 and 16,174.70

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Solution

The fourth proportional to 29,603.78, 40,852.69 and 16,174.70 is: 22,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,603.78 : 40,852.69 = 16,174.70 : x
  2. Step 2: Convert to fraction form
    29,603.78/40,852.69 = 16,174.70/x
  3. Step 3: Cross multiply
    29,603.78x = 40,852.69 × 16,174.70
  4. Step 4: Simplify right side
    29,603.78x = 660,780,004.94
  5. Step 5: Solve for x
    x = 660,780,004.94/29,603.78
  6. Step 6: Final answer
    x = 22,320.80

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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.