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Finding the Fourth Proportional to 16,668.52, 23,002.50 and 9,216.52

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Solution

The fourth proportional to 16,668.52, 23,002.50 and 9,216.52 is: 12,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.52 : 23,002.50 = 9,216.52 : x
  2. Step 2: Convert to fraction form
    16,668.52/23,002.50 = 9,216.52/x
  3. Step 3: Cross multiply
    16,668.52x = 23,002.50 × 9,216.52
  4. Step 4: Simplify right side
    16,668.52x = 212,003,001.30
  5. Step 5: Solve for x
    x = 212,003,001.30/16,668.52
  6. Step 6: Final answer
    x = 12,718.77

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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.