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Finding the Fourth Proportional to 14,000.65, 19,314.08 and 8,960.83

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Solution

The fourth proportional to 14,000.65, 19,314.08 and 8,960.83 is: 12,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.65 : 19,314.08 = 8,960.83 : x
  2. Step 2: Convert to fraction form
    14,000.65/19,314.08 = 8,960.83/x
  3. Step 3: Cross multiply
    14,000.65x = 19,314.08 × 8,960.83
  4. Step 4: Simplify right side
    14,000.65x = 173,070,187.49
  5. Step 5: Solve for x
    x = 173,070,187.49/14,000.65
  6. Step 6: Final answer
    x = 12,361.58

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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.