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Finding the Fourth Proportional to 25,129.80, 34,680.02 and 16,646.67

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Solution

The fourth proportional to 25,129.80, 34,680.02 and 16,646.67 is: 22,972.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,129.80 : 34,680.02 = 16,646.67 : x
  2. Step 2: Convert to fraction form
    25,129.80/34,680.02 = 16,646.67/x
  3. Step 3: Cross multiply
    25,129.80x = 34,680.02 × 16,646.67
  4. Step 4: Simplify right side
    25,129.80x = 577,306,765.30
  5. Step 5: Solve for x
    x = 577,306,765.30/25,129.80
  6. Step 6: Final answer
    x = 22,972.99

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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.