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Finding the Fourth Proportional to 14,007.53, 20,962.95 and 8,668.52

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Solution

The fourth proportional to 14,007.53, 20,962.95 and 8,668.52 is: 12,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.53 : 20,962.95 = 8,668.52 : x
  2. Step 2: Convert to fraction form
    14,007.53/20,962.95 = 8,668.52/x
  3. Step 3: Cross multiply
    14,007.53x = 20,962.95 × 8,668.52
  4. Step 4: Simplify right side
    14,007.53x = 181,717,751.33
  5. Step 5: Solve for x
    x = 181,717,751.33/14,007.53
  6. Step 6: Final answer
    x = 12,972.86

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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.