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Finding the Fourth Proportional to 53,658.42, 74,049.42 and 29,786.64

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Solution

The fourth proportional to 53,658.42, 74,049.42 and 29,786.64 is: 41,106.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,658.42 : 74,049.42 = 29,786.64 : x
  2. Step 2: Convert to fraction form
    53,658.42/74,049.42 = 29,786.64/x
  3. Step 3: Cross multiply
    53,658.42x = 74,049.42 × 29,786.64
  4. Step 4: Simplify right side
    53,658.42x = 2,205,683,415.75
  5. Step 5: Solve for x
    x = 2,205,683,415.75/53,658.42
  6. Step 6: Final answer
    x = 41,106.01

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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.