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Finding the Fourth Proportional to 16,909.80, 25,369.05 and 9,895.74

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Solution

The fourth proportional to 16,909.80, 25,369.05 and 9,895.74 is: 14,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,909.80 : 25,369.05 = 9,895.74 : x
  2. Step 2: Convert to fraction form
    16,909.80/25,369.05 = 9,895.74/x
  3. Step 3: Cross multiply
    16,909.80x = 25,369.05 × 9,895.74
  4. Step 4: Simplify right side
    16,909.80x = 251,045,522.85
  5. Step 5: Solve for x
    x = 251,045,522.85/16,909.80
  6. Step 6: Final answer
    x = 14,846.16

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1.5x scale

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.