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Finding the Fourth Proportional to 40,354.08, 60,521.28 and 12,652.08

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Solution

The fourth proportional to 40,354.08, 60,521.28 and 12,652.08 is: 18,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,354.08 : 60,521.28 = 12,652.08 : x
  2. Step 2: Convert to fraction form
    40,354.08/60,521.28 = 12,652.08/x
  3. Step 3: Cross multiply
    40,354.08x = 60,521.28 × 12,652.08
  4. Step 4: Simplify right side
    40,354.08x = 765,720,076.26
  5. Step 5: Solve for x
    x = 765,720,076.26/40,354.08
  6. Step 6: Final answer
    x = 18,975.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.