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Finding the Fourth Proportional to 16,667.52, 23,001.12 and 9,215.52

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Solution

The fourth proportional to 16,667.52, 23,001.12 and 9,215.52 is: 12,717.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,667.52 : 23,001.12 = 9,215.52 : x
  2. Step 2: Convert to fraction form
    16,667.52/23,001.12 = 9,215.52/x
  3. Step 3: Cross multiply
    16,667.52x = 23,001.12 × 9,215.52
  4. Step 4: Simplify right side
    16,667.52x = 211,967,281.38
  5. Step 5: Solve for x
    x = 211,967,281.38/16,667.52
  6. Step 6: Final answer
    x = 12,717.39

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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.