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Finding the Fourth Proportional to 21,921.03, 32,886.81 and 6,338.25

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Solution

The fourth proportional to 21,921.03, 32,886.81 and 6,338.25 is: 9,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.03 : 32,886.81 = 6,338.25 : x
  2. Step 2: Convert to fraction form
    21,921.03/32,886.81 = 6,338.25/x
  3. Step 3: Cross multiply
    21,921.03x = 32,886.81 × 6,338.25
  4. Step 4: Simplify right side
    21,921.03x = 208,444,823.48
  5. Step 5: Solve for x
    x = 208,444,823.48/21,921.03
  6. Step 6: Final answer
    x = 9,508.90

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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.