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Finding the Fourth Proportional to 21,652.75, 32,480.07 and 6,862.76

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Solution

The fourth proportional to 21,652.75, 32,480.07 and 6,862.76 is: 10,294.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652.75 : 32,480.07 = 6,862.76 : x
  2. Step 2: Convert to fraction form
    21,652.75/32,480.07 = 6,862.76/x
  3. Step 3: Cross multiply
    21,652.75x = 32,480.07 × 6,862.76
  4. Step 4: Simplify right side
    21,652.75x = 222,902,925.19
  5. Step 5: Solve for x
    x = 222,902,925.19/21,652.75
  6. Step 6: Final answer
    x = 10,294.44

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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.