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Finding the Fourth Proportional to 56,773.81, 85,160.72 and 21,724.21

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Solution

The fourth proportional to 56,773.81, 85,160.72 and 21,724.21 is: 32,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,773.81 : 85,160.72 = 21,724.21 : x
  2. Step 2: Convert to fraction form
    56,773.81/85,160.72 = 21,724.21/x
  3. Step 3: Cross multiply
    56,773.81x = 85,160.72 × 21,724.21
  4. Step 4: Simplify right side
    56,773.81x = 1,850,049,256.41
  5. Step 5: Solve for x
    x = 1,850,049,256.41/56,773.81
  6. Step 6: Final answer
    x = 32,586.32

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Similar ratio
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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.