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Finding the Fourth Proportional to 57,056.67, 78,711.69 and 36,920.04

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Solution

The fourth proportional to 57,056.67, 78,711.69 and 36,920.04 is: 50,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.67 : 78,711.69 = 36,920.04 : x
  2. Step 2: Convert to fraction form
    57,056.67/78,711.69 = 36,920.04/x
  3. Step 3: Cross multiply
    57,056.67x = 78,711.69 × 36,920.04
  4. Step 4: Simplify right side
    57,056.67x = 2,906,038,743.27
  5. Step 5: Solve for x
    x = 2,906,038,743.27/57,056.67
  6. Step 6: Final answer
    x = 50,932.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.