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Finding the Fourth Proportional to 21,713.44, 32,569.74 and 8,565.92

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Solution

The fourth proportional to 21,713.44, 32,569.74 and 8,565.92 is: 12,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.44 : 32,569.74 = 8,565.92 : x
  2. Step 2: Convert to fraction form
    21,713.44/32,569.74 = 8,565.92/x
  3. Step 3: Cross multiply
    21,713.44x = 32,569.74 × 8,565.92
  4. Step 4: Simplify right side
    21,713.44x = 278,989,787.26
  5. Step 5: Solve for x
    x = 278,989,787.26/21,713.44
  6. Step 6: Final answer
    x = 12,848.71

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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.