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Finding the Fourth Proportional to 60,788.75, 91,182.85 and 16,420.05

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Solution

The fourth proportional to 60,788.75, 91,182.85 and 16,420.05 is: 24,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,788.75 : 91,182.85 = 16,420.05 : x
  2. Step 2: Convert to fraction form
    60,788.75/91,182.85 = 16,420.05/x
  3. Step 3: Cross multiply
    60,788.75x = 91,182.85 × 16,420.05
  4. Step 4: Simplify right side
    60,788.75x = 1,497,226,915.09
  5. Step 5: Solve for x
    x = 1,497,226,915.09/60,788.75
  6. Step 6: Final answer
    x = 24,630.00

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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.