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Finding the Fourth Proportional to 29,603.81, 40,852.78 and 16,174.78

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Solution

The fourth proportional to 29,603.81, 40,852.78 and 16,174.78 is: 22,320.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,603.81 : 40,852.78 = 16,174.78 : x
  2. Step 2: Convert to fraction form
    29,603.81/40,852.78 = 16,174.78/x
  3. Step 3: Cross multiply
    29,603.81x = 40,852.78 × 16,174.78
  4. Step 4: Simplify right side
    29,603.81x = 660,784,728.89
  5. Step 5: Solve for x
    x = 660,784,728.89/29,603.81
  6. Step 6: Final answer
    x = 22,320.94

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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.