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Finding the Fourth Proportional to 23,728.78, 32,745.82 and 12,973.88

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Solution

The fourth proportional to 23,728.78, 32,745.82 and 12,973.88 is: 17,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,728.78 : 32,745.82 = 12,973.88 : x
  2. Step 2: Convert to fraction form
    23,728.78/32,745.82 = 12,973.88/x
  3. Step 3: Cross multiply
    23,728.78x = 32,745.82 × 12,973.88
  4. Step 4: Simplify right side
    23,728.78x = 424,840,339.18
  5. Step 5: Solve for x
    x = 424,840,339.18/23,728.78
  6. Step 6: Final answer
    x = 17,904.01

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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.