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Finding the Fourth Proportional to 21,667.52, 32,501.28 and 7,624.24

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Solution

The fourth proportional to 21,667.52, 32,501.28 and 7,624.24 is: 11,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,667.52 : 32,501.28 = 7,624.24 : x
  2. Step 2: Convert to fraction form
    21,667.52/32,501.28 = 7,624.24/x
  3. Step 3: Cross multiply
    21,667.52x = 32,501.28 × 7,624.24
  4. Step 4: Simplify right side
    21,667.52x = 247,797,559.03
  5. Step 5: Solve for x
    x = 247,797,559.03/21,667.52
  6. Step 6: Final answer
    x = 11,436.36

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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.