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Finding the Fourth Proportional to 21,902.73, 32,854.74 and 8,575.17

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Solution

The fourth proportional to 21,902.73, 32,854.74 and 8,575.17 is: 12,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.73 : 32,854.74 = 8,575.17 : x
  2. Step 2: Convert to fraction form
    21,902.73/32,854.74 = 8,575.17/x
  3. Step 3: Cross multiply
    21,902.73x = 32,854.74 × 8,575.17
  4. Step 4: Simplify right side
    21,902.73x = 281,734,980.81
  5. Step 5: Solve for x
    x = 281,734,980.81/21,902.73
  6. Step 6: Final answer
    x = 12,863.01

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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.